{"id":726,"date":"2025-08-21T17:40:11","date_gmt":"2025-08-21T17:40:11","guid":{"rendered":"https:\/\/www.nortonschool.com\/blog\/?p=726"},"modified":"2025-08-21T17:41:55","modified_gmt":"2025-08-21T17:41:55","slug":"compression-levels-explained-15-20-20-30-30-40-mmhg","status":"publish","type":"post","link":"https:\/\/www.nortonschool.com\/blog\/compression-levels-explained-15-20-20-30-30-40-mmhg\/","title":{"rendered":"Compression Levels Explained (15\u201320 vs 20\u201330 vs 30\u201340 mmHg): Who Needs What\u2014and Why"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Compression levels explained<\/strong>\u2014in plain language. If you\u2019ve ever wondered whether <strong>15\u201320, 20\u201330, or 30\u201340 mmHg<\/strong> is right for you or your patients, this quick primer breaks down what those numbers actually mean, how gradient pressure supports lymph and venous return, and when to step up\u2014or down\u2014based on stage, tissue quality, and daily demands. We\u2019ll compare common day garments (circular- vs flat-knit), look at why legs often need firmer containment than arms, and clarify where wraps and night garments fit. Most importantly, you\u2019ll learn how to choose the <strong>lowest effective level<\/strong> that maintains reduction <em>and<\/em> comfort\u2014in partnership with a Certified Lymphedema Therapist.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-9edacc0e\"><h2 id=\"what-mmhg-means-and-why-gradient-matters\" class=\"uagb-heading-text\"><strong>What \u201cmmHg\u201d Means\u2014and Why Gradient Matters<\/strong><\/h2><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>mmHg<\/strong> = millimeters of mercury, the same unit used for blood pressure.<\/li>\n\n\n\n<li><strong>Graduated compression<\/strong> means <strong>higher pressure at the wrist\/ankle<\/strong> tapering upward. This gradient gently counters hydrostatic pressure, supports the lymphatic and venous pumps, and limits re-accumulation between therapy sessions.<\/li>\n\n\n\n<li>The <strong>right level<\/strong> depends on <strong>diagnosis, stage, limb, tissue quality, tolerance, and goals<\/strong> (reduction vs maintenance), plus safety considerations (skin integrity, arterial sufficiency, cardiac status, neuropathy).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-1192c45d\"><h2 id=\"fabric-and-feel-influence-results-too\" class=\"uagb-heading-text\"><strong>Fabric and \u201cFeel\u201d Influence Results, too<\/strong><\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">While this guide focuses on <strong>pressure levels<\/strong>, keep in mind:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Flat-Knit<\/strong> garments are stiffer, resist stretching into skin folds, and often work better for <strong>shape control<\/strong> and <strong>stage II+<\/strong> lymphedema.<\/li>\n\n\n\n<li><strong>Circular-Knit<\/strong> tends to feel softer and is common for <strong>milder<\/strong> presentations and athletic wear.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-uagb-image uagb-block-1a1fb53a wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img data-recalc-dims=\"1\" decoding=\"async\" srcset=\"https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/circular-vs-flat-knit-sleeves-1024x683.jpg ,https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/circular-vs-flat-knit-sleeves.jpg 780w, https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/circular-vs-flat-knit-sleeves.jpg 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/i0.wp.com\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/circular-vs-flat-knit-sleeves.jpg?resize=680%2C453&#038;ssl=1\" alt=\"Two forearms wearing smooth circular-knit and textured flat-knit compression sleeves\" class=\"uag-image-730\" width=\"680\" height=\"453\" title=\"circular-vs-flat-knit-sleeves\" loading=\"lazy\" role=\"img\"\/><figcaption class=\"uagb-image-caption\">Flat-Knit vs Circular-Knit<\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Adjustable wraps<\/strong> (Velcro\u00ae-type) are great for <strong>self-management<\/strong>, fluctuating limbs, or when donning a sleeve is difficult.<\/li>\n\n\n\n<li><strong>Night garments<\/strong> (foam\/channeled) are separate tools\u2014don\u2019t confuse their sizing or expectations with day compression.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-089e9dff\"><h2 id=\"level-by-level-who-typically-needs-what\" class=\"uagb-heading-text\"><strong>Level-by-Level: Who Typically Needs What<\/strong><\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-330bbf90\"><h3 id=\"15-20-mmhg-mild-support\" class=\"uagb-heading-text\"><strong>15\u201320 mmHg (Mild Support)<\/strong><\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it is:<\/strong> The lightest commonly available medical compression level. Often labeled \u201cmild,\u201d sometimes used in sports\/air travel such as <a href=\"https:\/\/www.lymphedemaproducts.com\/products\/jobst-sport-socks.html\">Jobst Sport Socks<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Best for:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Very Early\/Mild Edema<\/strong> or a limb with <strong>low daytime demand<\/strong> after successful reduction<\/li>\n\n\n\n<li><strong>Prevention<\/strong> in at-risk limbs (e.g., air travel after lymph node procedures) when a clinician recommends it<\/li>\n\n\n\n<li>People <strong>transitioning<\/strong> into compression who need to build tolerance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Often not enough for:<\/strong> Established lymphedema that rebounds during the day; <strong>stage I\u2013II<\/strong> cases usually require at least <strong>20\u201330 mmHg<\/strong> for maintenance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why\/When to Choose:<\/strong> Comfort, adherence, and lifestyle trump theory; if a patient can truly maintain volume and activity in 15\u201320 mmHg without end-of-day rebound, it\u2019s acceptable. Otherwise step up.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-772c339e\"><h3 id=\"20-30-mmhg-moderate-class-i-in-many-us-charts\" class=\"uagb-heading-text\"><strong>20\u201330 mmHg (Moderate \/ Class I in many US Charts)<\/strong><\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it is:<\/strong> The <strong>most commonly prescribed<\/strong> day-time level for <strong>upper-extremity<\/strong> lymphedema maintenance and for many <strong>mild\u2013moderate<\/strong> lower-extremity cases (once reduced). Examples include <a href=\"https:\/\/www.lymphedemaproducts.com\/products\/juzo-soft-2000-arm-sleeve.html\">Juzo Soft Arm Sleeves<\/a> and <a href=\"https:\/\/www.lymphedemaproducts.com\/searchresults.html?keywords=juzo+soft#\/?keywords=juzo+soft&amp;search_return=all&amp;Subcategory1=Lower+Extremity\">Juzo Soft Stockings<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Best for:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stage 0\u2013I<\/strong> and many <strong>stage II<\/strong> presentations after decongestive therapy<\/li>\n\n\n\n<li><strong>Upper-Extremity Maintenance<\/strong> (post-breast-cancer-related lymphedema)<\/li>\n\n\n\n<li><strong>Daily Wear<\/strong> when patients need a balance of effectiveness and comfort<\/li>\n\n\n\n<li><strong>Post-Operative or Post-Injury<\/strong> edema when compression is advised by the care team<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>May be insufficient for:<\/strong> Persistently <strong>fibrotic<\/strong> tissues, frequent <strong>end-of-day rebound<\/strong>, or heavier lower-extremity disease\u2014these often benefit from <strong>30\u201340 mmHg<\/strong> or stiffer fabric.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why\/When to Choose:<\/strong> Start here for many UE cases: it\u2019s effective, more wearable than higher levels, and easier for patients to don\/doff consistently.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8a2a2eed\"><h3 id=\"30-40-mmhg-firm-class-ii-in-many-us-charts\" class=\"uagb-heading-text\"><strong>30\u201340 mmHg (Firm \/ Class II in many US Charts)<\/strong><\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it is:<\/strong> A <strong>higher, firmer<\/strong> therapeutic level. Often paired with <strong>flat-knit<\/strong> or <strong>adjustable wraps<\/strong> when shape control is needed. <a href=\"https:\/\/www.lymphedemaproducts.com\/products\/readywrap-calf-compression-legging.html\">Solaris ReadyWrap Calf<\/a> is a great example of a firmer adjustable wrap.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Best for:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stage II<\/strong> lymphedema with <strong>rebound<\/strong> in 20\u201330 mmHg<\/li>\n\n\n\n<li><strong>Lower-Extremity<\/strong> lymphedema (gravitational load is higher)<\/li>\n\n\n\n<li><strong>Fibrotic Tissue<\/strong> or skin folds where stiffer containment helps<\/li>\n\n\n\n<li><strong>Phlebolymphedema<\/strong> (venous + lymphatic) when arterial status is adequate<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Be cautious with:<\/strong> Donning difficulty (consider donning aids\/wraps), sensory neuropathy, fragile skin, and thermoregulation issues. Always re-check perfusion and comfort.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why\/When to Choose:<\/strong> When <strong>containment<\/strong> and <strong>all-day control<\/strong> are priorities and the patient can safely tolerate the higher force.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-995af11c\"><h3 id=\"40-50-mmhg-and-above-very-firm-class-iii\" class=\"uagb-heading-text\"><strong>40\u201350 mmHg and Above (Very Firm \/ Class III+)<\/strong><\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Use Case:<\/strong> Selected <strong>severe<\/strong> lymphedema (often lower limbs), <strong>significant fibrotic change<\/strong>, or cases that clearly fail lower levels\u2014<strong>only<\/strong> after clinical assessment. Often <strong>custom<\/strong> flat-knit or structured wraps like the <a href=\"https:\/\/www.lymphedemaproducts.com\/products\/circaid-juxta-fit-essentials-whole-leg.html\">CircAid Juxta-Fit Essentials Leg Wrap<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br><strong>Caution:<\/strong> Increased risk of discomfort, donning challenges, and potential problems if arterial supply is marginal. Should be <strong>clinician-directed<\/strong> and re-evaluated regularly.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-6a43b301\"><h2 id=\"upper-vs-lower-limb-why-legs-often-need-more\" class=\"uagb-heading-text\"><strong>Upper vs Lower Limb: Why Legs Often Need More<\/strong><\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-image uagb-block-7dba7c35 wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img data-recalc-dims=\"1\" decoding=\"async\" srcset=\"https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/lower-leg-compression-stocking-stairs-1024x683.jpg ,https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/lower-leg-compression-stocking-stairs.jpg 780w, https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/lower-leg-compression-stocking-stairs.jpg 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/i0.wp.com\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/lower-leg-compression-stocking-stairs.jpg?resize=1024%2C683&#038;ssl=1\" alt=\"Person wearing beige knee-high compression stockings walking up stone steps\" class=\"uag-image-731\" width=\"1024\" height=\"683\" title=\"lower-leg-compression-stocking-stairs\" loading=\"lazy\" role=\"img\"\/><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hydrostatic load<\/strong>: Gravity makes distal leg pressure management harder, especially with prolonged standing or heat.<\/li>\n\n\n\n<li><strong>Tissue mass<\/strong>: Calf\/thigh compartments often require <strong>stiffer containment<\/strong> than arms.<\/li>\n\n\n\n<li><strong>Gait &amp; shear<\/strong>: Walking introduces shear forces; sturdier fabrics hold shape better.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Result<\/strong>: A patient who does well in <strong>20\u201330 mmHg<\/strong> on the <strong>arm<\/strong> may need <strong>30\u201340 mmHg<\/strong> (and\/or stiffer fabric) on the <strong>leg<\/strong> to achieve the same clinical effect.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-7ad8d9c2\"><h2 id=\"selecting-the-lowest-effective-level\" class=\"uagb-heading-text\"><strong>Selecting the <em>Lowest Effective<\/em> Level<\/strong><\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Think in terms of <strong>Therapeutic Goals<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Reduction Phase<\/strong> (with bandaging, MLD, exercise): use multi-layer short-stretch bandaging or adjustable wraps to <strong>decongest<\/strong> and reshape.<\/li>\n\n\n\n<li><strong>Transition<\/strong>: trial of day-time sleeve\/stocking at the <strong>anticipated maintenance level<\/strong>.<\/li>\n\n\n\n<li><strong>Maintenance<\/strong>: confirm the chosen pressure <strong>prevents rebound<\/strong> through the full day and is <strong>tolerable<\/strong> for the patient\u2019s routine (work, travel, heat).<\/li>\n\n\n\n<li><strong>Tune-ups<\/strong>: adjust <strong>fabric, style, or level<\/strong> if swelling increases\u2014earlier rather than later.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-eb0ef7d0\"><h2 id=\"safety-first-when-compression-might-be-unsafe-or-needs-modification\" class=\"uagb-heading-text\"><strong>Safety First: When Compression Might be Unsafe or Needs Modification<\/strong><\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-3c7b1844\"><h4 id=\"absolute-relative-red-flags-seek-clinician-guidance\" class=\"uagb-heading-text\"><strong>Absolute\/Relative Red Flags (Seek Clinician Guidance):<\/strong><\/h4><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Acute infection<\/strong> (cellulitis) or <strong>suspected DVT<\/strong><\/li>\n\n\n\n<li><strong>Uncompensated heart failure<\/strong> or acute cardiopulmonary decompensation<\/li>\n\n\n\n<li><strong>Significant peripheral arterial disease<\/strong> (e.g., low ABI)<\/li>\n\n\n\n<li><strong>Severe neuropathy<\/strong> or <strong>fragile\/ulcerated skin<\/strong> that cannot tolerate shear<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-14abac1a\"><h4 id=\"skin-comfort-considerations\" class=\"uagb-heading-text\"><strong>Skin &amp; Comfort Considerations<\/strong><\/h4><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Check daily for <strong>redness, pressure marks, numbness, tingling, pain<\/strong>.<\/li>\n\n\n\n<li>If the top band <strong>rolls<\/strong> or the wrist <strong>tourniquets<\/strong>, the size\/length\/fabric\u2014or the level itself\u2014may be wrong.<\/li>\n\n\n\n<li>Don\u2019t jump levels to solve a <strong>fit<\/strong> problem; solve <strong>fit<\/strong> (measurement, fabric, style) first.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-4a210722\"><h2 id=\"choosing-fabric-style-at-each-level-quick-guide\" class=\"uagb-heading-text\"><strong>Choosing Fabric &amp; Style at Each Level (Quick Guide)<\/strong><\/h2><\/div>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th>Goal \/ Scenario<\/th><th>Good Fabric\/Style Pairings<\/th><\/tr><\/thead><tbody><tr><td>Early\/mild UE edema, high comfort<\/td><td>20\u201330 mmHg circular-knit sleeve + gauntlet if needed<\/td><\/tr><tr><td>UE stage II with shape change<\/td><td>20\u201330 mmHg <strong>flat-knit<\/strong> sleeve (or 30\u201340 mmHg if rebound)<\/td><\/tr><tr><td>LE lymphedema, daily walking\/standing<\/td><td>30\u201340 mmHg flat-knit stocking or <strong>adjustable wrap<\/strong><\/td><\/tr><tr><td>Fluctuating limb volume<\/td><td><strong>Adjustable wraps<\/strong> (easier self-management; re-tension during day)<\/td><\/tr><tr><td>Night containment<\/td><td><strong>Foam\/channeled night garment<\/strong> (separate from day level)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-uagb-image uagb-block-9fa6cf47 wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img data-recalc-dims=\"1\" decoding=\"async\" srcset=\"https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/adjustable-wrap-and-donning-gloves-1024x683.jpg ,https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/adjustable-wrap-and-donning-gloves.jpg 780w, https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/adjustable-wrap-and-donning-gloves.jpg 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/i0.wp.com\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/adjustable-wrap-and-donning-gloves.jpg?resize=1024%2C683&#038;ssl=1\" alt=\"Beige adjustable compression wrap with fasteners and a pair of donning gloves\" class=\"uag-image-732\" width=\"1024\" height=\"683\" title=\"adjustable-wrap-and-donning-gloves\" loading=\"lazy\" role=\"img\"\/><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c48a98b2\"><h2 id=\"how-to-decide-in-clinic-a-simple-framework-for-clts\" class=\"uagb-heading-text\"><strong>How to Decide in Clinic (A Simple Framework for CLTs)<\/strong><\/h2><\/div>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Clinical Picture:<\/strong> stage, region (UE\/LE), tissue feel, girth profile, skin status.<\/li>\n\n\n\n<li><strong>Functional Day:<\/strong> job demands, sitting\/standing ratio, heat\/exercise profile, dexterity.<\/li>\n\n\n\n<li><strong>Trial &amp; Verify:<\/strong> start at the <strong>lowest likely effective level<\/strong>, re-measure at end of day or after typical activity; if rebound or symptoms persist, <strong>step up<\/strong> level or <strong>stiffen fabric<\/strong>.<\/li>\n\n\n\n<li><strong>Educate for Self-Audit:<\/strong> teach patients to look for <strong>rebound cues<\/strong> (shoe feels tight, sleeve line marks, heaviness) and to report early.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-4c844dbc\"><h2 id=\"faqs\" class=\"uagb-heading-text\"><strong>FAQs<\/strong><\/h2><\/div>\n\n\n<div class=\"wp-block-uagb-faq uagb-faq__outer-wrap uagb-block-659f1c78 uagb-faq-icon-row uagb-faq-layout-accordion uagb-faq-expand-first-true uagb-faq-inactive-other-true uagb-faq__wrap uagb-buttons-layout-wrap uagb-faq-equal-height     \" data-faqtoggle=\"true\" role=\"tablist\"><script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"<strong>Is 15\\u201320 mmHg ever enough for lymphedema?<\\\/strong>\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Sometimes for <strong>very mild<\\\/strong> or <strong>prevention<\\\/strong> scenarios, especially upper limb\\u2014but most established cases need <strong>20\\u201330 mmHg<\\\/strong> or higher.\"}},{\"@type\":\"Question\",\"name\":\"<strong>Why does 30\\u201340 mmHg feel so different if the number change is small?<\\\/strong>\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Because <strong>fabric stiffness<\\\/strong> and <strong>limb geometry<\\\/strong> amplify the functional force; a stiffer flat-knit in 30\\u201340 mmHg can feel substantially firmer than a 20\\u201330 mmHg circular-knit.\"}},{\"@type\":\"Question\",\"name\":\"<strong>Do I wear the same level at night?<\\\/strong>\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Generally <strong>no<\\\/strong>. Night garments are built differently to soften fibrosis and distribute low-load forces safely during sleep.\"}},{\"@type\":\"Question\",\"name\":\"<strong>What if I can\\u2019t don\\\/doff higher levels?<\\\/strong>\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use <strong>donning aids<\\\/strong>, choose <strong>zoned<\\\/strong> or <strong>open-weave<\\\/strong> designs, or switch to <strong>adjustable wraps<\\\/strong> that maintain therapeutic pressure with easier application.\"}}]}<\/script><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-2aeff627 \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\"><strong>Is 15\u201320 mmHg ever enough for lymphedema?<\/strong><\/span><\/div><div class=\"uagb-faq-content\"><p>Sometimes for <strong>very mild<\/strong> or <strong>prevention<\/strong> scenarios, especially upper limb\u2014but most established cases need <strong>20\u201330 mmHg<\/strong> or higher.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-4368866e \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\"><strong>Why does 30\u201340 mmHg feel so different if the number change is small?<\/strong><\/span><\/div><div class=\"uagb-faq-content\"><p>Because <strong>fabric stiffness<\/strong> and <strong>limb geometry<\/strong> amplify the functional force; a stiffer flat-knit in 30\u201340 mmHg can feel substantially firmer than a 20\u201330 mmHg circular-knit.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-c5bea870 \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\"><strong>Do I wear the same level at night?<\/strong><\/span><\/div><div class=\"uagb-faq-content\"><p>Generally <strong>no<\/strong>. Night garments are built differently to soften fibrosis and distribute low-load forces safely during sleep.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-ea6df0fa \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\"><strong>What if I can\u2019t don\/doff higher levels?<\/strong><\/span><\/div><div class=\"uagb-faq-content\"><p>Use <strong>donning aids<\/strong>, choose <strong>zoned<\/strong> or <strong>open-weave<\/strong> designs, or switch to <strong>adjustable wraps<\/strong> that maintain therapeutic pressure with easier application.<\/p><\/div><\/div><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-d3d8397e\"><h2 id=\"find-help-and-grow-your-skills\" class=\"uagb-heading-text\"><strong>Find Help\u2014and Grow Your Skills<\/strong><\/h2><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Patients:<\/strong> Work with a <strong>Certified Lymphedema Therapist<\/strong> to determine the <strong>safest, most effective<\/strong> level for <strong>your<\/strong> limb. Use Norton School\u2019s Therapist Referral to locate a CLT in your area.<\/li>\n\n\n\n<li><strong>Clinicians:<\/strong> Want deeper mastery of compression selection, fitting, and CDT? Explore <strong>Norton School<\/strong>\u2019s comprehensive <strong>Lymphedema Certification (CDT) courses<\/strong> and advanced workshops.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-4ff288c7\"><h4 id=\"friendly-disclaimer\" class=\"uagb-heading-text\"><strong>Friendly Disclaimer<\/strong><\/h4><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">This article is educational and <strong>not<\/strong> a substitute for medical advice. Compression levels and garment selection should be made with a qualified clinician who knows your history, skin, and arterial\/cardiac status.<\/p>\n","protected":false},"excerpt":{"rendered":"Compression levels explained\u2014in plain language. If you\u2019ve ever wondered whether 15\u201320, 20\u201330, or 30\u201340 mmHg is right for you or your patients, this quick primer breaks down what those numbers actually mean, how gradient pressure supports lymph and venous return, and when to step up\u2014or down\u2014based on stage, tissue quality, and daily demands.\n","protected":false},"author":1,"featured_media":729,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_uag_custom_page_level_css":"","iawp_total_views":7051,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8,25,31],"tags":[],"class_list":["post-726","post","type-post","status-publish","format-standard","has-post-thumbnail","category-living-with-lymphedema","category-lymphedema-education-resources","category-lymphedema-products"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Compression Levels Explained: 15\u201320 vs 20\u201330 vs 30\u201340 mmHg | The Norton School Blog<\/title>\n<meta name=\"description\" content=\"Confused by 15\u201320, 20\u201330, or 30\u201340 mmHg? 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This guide to choosing safe, effective compression for lymphedema.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.nortonschool.com\/blog\/compression-levels-explained-15-20-20-30-30-40-mmhg\/\" \/>\n<meta property=\"og:site_name\" content=\"The Norton School Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/NortonSchool\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/NortonSchool\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-21T17:40:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-21T17:41:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.nortonschool.com\/blog\/wp-content\/uploads\/2025\/08\/compression-levels-explained-hero.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"The Norton School\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/x.com\/LymphSchool\/\" \/>\n<meta name=\"twitter:site\" content=\"@LymphSchool\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"The Norton School\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/\"},\"author\":{\"name\":\"The Norton School\",\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/#\\\/schema\\\/person\\\/205b6f333f9fe02206886425c82a3b53\"},\"headline\":\"Compression Levels Explained (15\u201320 vs 20\u201330 vs 30\u201340 mmHg): Who Needs What\u2014and Why\",\"datePublished\":\"2025-08-21T17:40:11+00:00\",\"dateModified\":\"2025-08-21T17:41:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/\"},\"wordCount\":1197,\"publisher\":{\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/www.nortonschool.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/compression-levels-explained-hero.jpg?fit=1536%2C1024&ssl=1\",\"articleSection\":[\"Living with Lymphedema\",\"Lymphedema Education &amp; Resources\",\"Lymphedema Products\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/\",\"url\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/\",\"name\":\"Compression Levels Explained: 15\u201320 vs 20\u201330 vs 30\u201340 mmHg | The Norton School Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.nortonschool.com\\\/blog\\\/compression-levels-explained-15-20-20-30-30-40-mmhg\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/www.nortonschool.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/compression-levels-explained-hero.jpg?fit=1536%2C1024&ssl=1\",\"datePublished\":\"2025-08-21T17:40:11+00:00\",\"dateModified\":\"2025-08-21T17:41:55+00:00\",\"description\":\"Confused by 15\u201320, 20\u201330, or 30\u201340 mmHg? 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