Bunion pain can be caused by physiological factors such as poorly fitting shoes and socks, as well as pathologic factors such as trauma, rheumatoid arthritis and gouty arthritis. 1. Physiological factors: If the shoes and socks do not fit the feet or if the feet are abraded by walking for a long period of time, the pain may be caused by squeezing of the bunion area, which may lead to localized pain symptoms, and does not require any special treatment, which can be gradually relieved by resting more and replacing the shoes and socks with more comfortable ones. 2. Trauma: Trauma to the bunion can lead to soft tissue injury or even toe fracture, which can cause localized pain, usually accompanied by localized redness, swelling, and pressure and pain. 3. Rheumatoid arthritis: Rheumatoid arthritis is a common autoimmune disease, in the early stages of the disease, patients will have small joints of the hands and feet swelling, pain and other symptoms, with the development of the disease, there will be joints in the morning stiffness, swelling and pain, and other manifestations, and serious deformities of the joints. 4. Gouty arthritis: Gouty arthritis is mainly due to monosodium urate crystals deposited in the joints and soft tissues around the joints, the main symptoms of joints, redness, swelling, heat, pain, etc., and in severe cases, there will be impaired organic function or joint deformities and other symptoms. The pain in the bunion of the foot is recommended to actively go to the hospital for relevant examinations, to clarify the cause of the disease, and follow the doctor’s instructions for standardized treatment.