Swelling and pain on the back of the feet may be caused by gout, strain, trauma and other reasons. 1. Gout: patients with gout will have swollen and painful instep. Gout is a non-infectious inflammatory disease, mainly caused by abnormal purine metabolism and increased uric acid. You can take Benzbromarone, Febuxostat and other drugs under the guidance of the doctor for treatment. 2. Strain: prolonged standing and walking or excessive physical labor may lead to poor venous return, causing swelling and pain in the feet. This condition can be relieved by foot soaking and rest. 3. Trauma: If the back of the foot is traumatized, soft tissue damage can also lead to swelling and pain in the back of the foot, such as the back of the foot collision or crushed can lead to this situation. It can be relieved by cold compresses, hot compresses, rest, or taking medicines under the doctor’s guidance to relieve the pain and blood circulation, such as Bunda Pills, Blood Alleviation and Pain Relief Capsules, and Panax Ginseng Injury Tablets. The above are only some of the common causes. If the patient continues to experience swelling and pain on the back of the foot, it is recommended that the patient go to the hospital for a timely examination to clarify the cause of the disease and then carry out targeted treatment. The use of drugs must follow the doctor’s instructions, not blindly use their own drugs, so as not to cause adverse consequences.