If it is simple superficial varicose veins of lower limbs, the general clinical symptoms are mild and the progress is slow, mostly manifested as simple varicose veins, and a few cases may have thrombophlebitis and venous ulcers. If the deep vein valve function is not complete, or even the deep vein reflux is blocked, the condition is relatively serious, and the calf feels heavy when standing, and it is easy to get tired, and even the lower limbs swell and burst pain. In the later stage, skin nutrition changes, desquamation, atrophy, pigmentation and eczema ulcer are formed.