Varicose veins in the lower extremities are common in life and are more prevalent mainly in occupations that require weight bearing or prolonged standing. Lower extremity varicose veins are easier to ignore in life and may produce a series of complications if not taken care of. The common complications of lower extremity varicose veins are: i. Thrombophlebitis. The slow blood flow in varicose veins makes it easy for thrombophlebitis to occur, with local redness, swelling, heat and pain, and hard nodes or strips can be palpated. Second, chronic ulcers can occur, mostly in the lower leg to the ankle, with pigmentation around the ulcer. Third, secondary infection, thrombophlebitis can lead to inflammation of surrounding tissues such as dermatitis and cellulitis because of the patient’s weakened resistance. Fourth, bruising dermatitis, nutritional disorders of the lower calf skin, dry skin, pigmentation, itching, etc. Fifth, varicose vein rupture bleeding, due to the increased venous pressure, can be manifested as subcutaneous bruising or bleeding outward when ulcerated, due to the high venous pressure, the bleeding rate is fast.