With the development of society, computers have entered into thousands of households. Many people sit in front of the computer for half a day or even a whole day, so the incidence of computer thrombosis —– that is, the lower extremity deep vein thrombosis a disease is also increasing year by year. Lower extremity deep vein is an important channel of the human lower extremity back to the heart blood, if thrombosis is blocked, the lighter can lead to swelling, pain, dark red color; the heavier can make the thrombus with the blood flow to the pulmonary artery causing pulmonary embolism leading to death. Therefore, people who play computers should be careful to prevent thrombosis. Computer thrombosis is mainly due to increased blood viscosity, slow blood flow and damage to the blood vessel wall. The following three types of people are prone to the disease: first, people with four hyperemias, i.e., high blood viscosity, high blood pressure, high blood fat and high blood sugar; second, people who are prone to colds or inflammatory diseases around the groin, such as prostatitis and pelvic inflammatory disease; third, people with slow blood flow. Therefore, if you want to avoid computer thrombosis, you should actively prevent and treat the four highs, treat the cold in time, move the lower limbs frequently, or pat the calves intermittently, in order to promote the speed of venous blood flow back to the lower limbs. After the formation of the disease should be promptly to the hospital with a vascular specialist diagnosis and treatment. Strive for a complete cure, otherwise the patient’s affected limb veins are in a long-term high-pressure, stagnant state. Over time, the affected limb calf will appear pigmentation, skin tissue fibrosis changes, dry skin, itching and even ulceration of the affected area for a long time, the quality of life has a serious impact on people.