What should you know about flat-knit compression hosiery?

Flat-knit fabric is less elastic and can be made to match an uneven limb shape. Its firmer structure may help contain swelling and reduce folds that could press into the skin. It is often considered when swelling is persistent, the limb shape is unusual, or softer circular-knit fabric does not provide a suitable fit. A garment does not treat the underlying cause, and the right pressure level depends on circulation, skin condition, swelling, sensation, and the limb being fitted.

Have the garment measured and supplied by a trained professional, particularly after cancer treatment or lymph-node surgery. Put it on as instructed, usually when swelling is least, and smooth out wrinkles without rolling the top edge. Check your skin and toes or fingers each day for redness, rubbing, colour change, numbness, or pressure marks. Keep the fabric clean and follow its washing and replacement instructions. Exercise, skin care, and other parts of [Lymphoedema Therapy](/treatments/survivorship-and-rehabilitation/lymphoedema-therapy/) may be recommended alongside hosiery.

Remove the garment and contact your care team if you develop new numbness, tingling, coldness, blue or pale fingers or toes, marked pain, or deep pressure damage. Sudden one-sided swelling with warmth, redness, chest pain, or breathlessness needs urgent assessment because a clot or infection may need prompt treatment. Do not force the garment back on if the limb has changed shape or the fit has become painful.

Ask who should measure you, how long to wear the garment, how to put it on without injuring your skin, and how to check circulation. Ask when the fit should be reviewed and whether a different [Compression Garment](/materials/compression-garment/) is appropriate for travel, exercise, or changing swelling.