Varicose veins in different parts of the body have different complications. The main varicose veins in different parts of the body are varicose veins of the lower extremities, varicose veins of the esophagogastric fundus, and varicose veins of the spermatic cord; the complications of varicose veins should be determined on a case-by-case basis. Varicose veins are tortuous and dilated veins caused by the backflow of blood. Blood stagnation and weakened elasticity of venous blood vessels are important factors leading to their occurrence, and varicose veins can occur in many parts of the human body. 1. Varicose veins of the lower extremities are the most common type of varicose veins, and their complications include thrombosed superficial phlebitis, which is caused by blood stagnation that washes over the walls of the veins; skin pigmentation, which is caused by a poor supply of blood vessels to nourish the skin; and rupture of a varicose vein that bleeds, which is caused by high pressure on the walls of the veins as well as by the impact of the blood flow. 2. Esophagogastric varices are caused by the loss of compensation of liver cirrhosis, and its common complications are gastrointestinal hemorrhage, black stools, and shock, which are all triggered by the high impact of blood flow on the wall of the veins of the esophagogastric fundus as well as the vessel’s capacity exceeding its capacity. 3. The common complications of varicocele include decreased sperm quality, scrotal distension, and testicular atrophy, which are all caused by ischemia, lack of oxygen, and lack of nutrients due to varicocele. It is recommended that patients with the above conditions go to a regular hospital in time and receive standardized treatment under the guidance of a doctor to avoid delays in their condition.