Swollen feet may be caused by trauma, gout, infectious diseases, venous diseases and heart diseases, etc. Different treatments are needed for different diseases. 1. Trauma: if there is a history of trauma, soft tissue injury and subcutaneous bruising, etc., it is considered to be swollen feet caused by trauma, which needs to be braked and treated with cold compresses and physiotherapy, and hot compresses are applied after 72 hours. 2. Gout: Swelling of the feet is more obvious and accompanied by pins and needles like swelling and pain. Oral colchicine and other anti-gout medications can be taken for treatment. 3. Infection: Skin, muscle and fascia can be swollen due to bacterial infection, and in severe cases there may be cellulitis, which requires anti-inflammatory treatment. At the same time, local wound debridement should be carried out. At the same time, systemic antibiotics such as ofloxacin should be used. 4. Venous diseases: Varicose veins and venous thrombosis and other venous diseases can lead to swollen feet and foot pain due to skin breakdown and nutritional deficiencies. Surgery is needed to remove varicose veins and restore venous return. 5. Heart diseases: Heart diseases such as right heart failure can cause foot pain and swelling due to poor blood return. Treatment such as cardiotonic diuretic is needed. Serious illnesses may also require surgical treatment. Swollen feet are not necessarily caused by sprains, kidney disease, liver disease, etc. can lead to swollen feet, if the symptoms of swollen feet are not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner, to clarify the cause of the targeted treatment.