Medical varicose socks are divided into three pressure levels, first pressure, second pressure and third pressure. Primary hypotensive preventive type (15-30 mmHg): it is suitable for people with high incidence of varicose veins and thrombosis in early stage and its health care and prevention; Secondary medium pressure therapy (30-40 mmHg): It is suitable for patients with obvious varicose veins of lower limbs accompanied by leg discomfort (such as lower limb pain, fatigue, swelling and pain, eczema, cramp and numbness, pigmentation, etc.). ), phlebitis, severe varicose veins during pregnancy, varicose veins after stripping, varicose veins of great saphenous vein, patients with deep vein thrombosis syndrome; Three-stage high pressure treatment of Feng Wei's varicose socks (40-50mmhg): suitable for patients with high swelling of lower limbs, ulcers, blackening and hardening of skin, irreversible lymphedema, and recovery after plastic liposuction.