Varicose veins themselves can cause symptoms such as heaviness and fatigue in the affected limbs, and with the progression of the disease, complications such as thrombophlebitis and ulcer formation can also occur. 1. Varicose veins: Varicose veins often occur in the lower limbs, causing expansion of the superficial veins of the lower limbs, resulting in weakness and heaviness of the affected limbs. Some patients may also have mild swelling of the ankle on the diseased side and skin pigmentation in the boot area, eczema and so on. 2. Thrombophlebitis: Varicose veins often cause thrombosis and perivenous phlebitis with localized hard nodules and skin adhesions. 3. Ulcer formation: some patients can cause long-lasting ulcers after the skin on the affected side is broken, and they often recur after healing. 4. Varicose vein rupture and bleeding: it can be manifested as subcutaneous bruise or skin rupture and external bleeding. Patients with varicose veins of the lower limbs are advised to consult a doctor in time if they feel unwell.