The solid uses: long flights, long standing or sitting days, pregnancy, varicose veins, and post-surgery or hospital DVT prevention, per NHS practice.
Put them on first thing in the morning before swelling starts, in the right size and graduated pressure, and off at night unless told otherwise. Ask a doctor first with peripheral artery disease, diabetes leg complications, skin infections, or heart failure. And new one-sided swelling, pain, warmth, or redness is a get-assessed pattern, not a sock pattern.
What to do
Common questions
When should I wear compression socks?
Compression socks earn their place in specific situations, not as everyday wear for everyone. The evidence-backed uses: long flights and other long, still stretches, because they support the calf pump that keeps blood moving; jobs or days spent standing or sitting for hours, which is when ankles swell; pregnancy, where leg swelling and varicose veins are common; varicose veins themselves, where the NHS includes compression stockings among the things that can ease symptoms; and after surgery or hospital treatment, where the NHS gives them to people at risk of DVT to help blood circulation. Practical rules: put them on first thing in the morning, before your legs have a chance to swell, because wrestling them onto already-swollen ankles is misery; make sure they are the right size and graduated pressure, since a too-tight top band digging in defeats the point; and take them off at night unless a clinician told you otherwise. Ask a doctor before using them if you have peripheral artery disease, diabetes with leg complications, skin infections, or heart failure, because compression on the wrong legs causes harm. And they are a symptom tool, not a diagnosis: new one-sided leg swelling, pain, warmth, or redness needs assessment, not a sock.