The hazards of varicose veins mainly include the following: 1, affect the image: superficial capillary dilation and distortion, affecting the cosmetic appearance; 2, eczema-like changes in the skin; 3, repeated ulcers, skin infections, mobility; 4, superficial venous thrombosis: superficial venous tortuous, distortion, resulting in abnormal blood flow, prone to thrombosis; 5, rupture, bleeding: superficial venous tortuous leading to venous rupture, bleeding, no pain, not easily detected, serious cases can be life-threatening.