Understanding mmHg and Effective Compression | Juzo USA
September 2026

Understanding mmHg and Effective Compression

Greg Biddulph, Juzo Product Manager

The compression product category is getting increasingly crowded. Many products claim to offer certain ranges of mmHg but do not follow the same strict standards Juzo does. Our Product Manager Greg explains true “graduated” compression and how to ensure your garment is effective for managing your medical condition.

 

Juzo delivers clinically trusted medical compression garments engineered for effective therapy, precise fit, lasting comfort and confident movement. With more than a century of compression expertise, Juzo offers ready-to-wear and made-to-measure solutions that help people manage venous disease, lymphedema, lipedema and related swelling—without compromising everyday life.

 

Why Medical Garment's Design Matters

Compression stockings offer different ranges of compression (mmHg), typically 15-20, 20–30 and 30-40 mmHG. It’s important to understand that not all stockings that claim the same mmHg number actually deliver it correctly on your limb. Getting the right amount of squeeze in the right place—true “graduated” compression, tightest at the ankle and gradually looser going up—takes precise engineering, not just stretchy fabric.


•      Your limb's shape affects the pressure it actually receives. The pressure a compression stocking delivers depends on the fabric's tension and the curve of your limb at that point. A narrow ankle and a wider calf need different amounts of fabric tension. Juzo sizes (and often knits) our medical-grade compression garments to closely match the shape of your specific leg or arm—not just its overall size.


•     True medical-grade stockings adhere to strict standards. Reputable manufacturers like Juzo take multiple measurements of your limb (i.e., ankle, calf, thigh and length) and offer many size options—sometimes dozens—plus custom-made options for legs that don't fit a standard size. We test finished garments at multiple points using specialized test equipment to confirm they actually deliver the pressure printed on the label.


•      Don’t settle for “one or two-size-fits-most” stockings. Inexpensive compression socks sold online are often available in only two or three generic sizes because they are designed for an average leg shape. If your limb doesn't closely match that average, the stocking can under-deliver pressure where you need it most (like the ankle), over-deliver it elsewhere (which can act like a tight band and restrict circulation) or roll and bunch, creating a dangerous constriction point.


•      Why this matters medically. For everyday tired legs, an imprecise fit is mostly a comfort issue. For medical conditions like venous disease, lipedema or lymphedema, an inaccurate dose of compression can hinder treatment and in some cases make swelling or circulation worse. This is why firm and extra-firm compression garments typically require a prescription and a professional fitting, rather than picking a generic size off a shelf.

 

Simply put, the mmHg number on the package is only accurate if the garment was actually designed and fitted to your limb. A well-made, properly fitted stocking delivers the dose your body needs. A generic, mass-market one may not, even if the label says the same number.

 

Juzo offers a range for compression socks, stockings, arm sleeves, gauntlets, gloves and wraps to help manage swelling and support lymph fluid drainage and improve venous circulation. Our “Why Compression Therapy” article includes a helpful chart you can reference to determine which product is best for your medical condition and lifestyle.


Learn about the different types of Juzo compression products on juzousa.com. Follow us on Instagram, @JuzoCompression and Facebook for more educational content about compression.

Olga commented on Oct 02, 2026
Reply

As a certified fitter with 20 years of experience I can share with the readers that Juzo has the best fitting garments on the market. When most compression manufacturers offer only two stocking lengths Juzo offers three, which allows me to fit each patient more precisely, especially those with truly petite leg length. I especially love Juzo’s premium fabrics like SOFT or DYNAMIC line, they never fail to fit well, but only if fitted by a certified fitter with extensive knowledge.

Juzo replied to Olga on Oct 05, 2026

Thank you Olga!

 
 

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