The pain and swelling of the sole of the foot may be caused by the following reasons: First, the patient is engaged in physical labor, so that the sole of the foot is in a long-term weight-bearing state, and the pain and swelling occur due to excessive strain. Secondly, the patient has been engaged in strenuous exercise, during which the soft tissues of the sole of the foot are damaged and the symptoms appear. Third, the plantar plate is affected by trauma, and the swelling and pain is caused by trauma. Fourth, the inflammation of the joints in the sole of the foot may cause swelling and pain. It is best to go to the hospital to check this condition, take a film of the sole of the foot, observe the condition of the sole of the foot, and then clarify the cause of the swelling, and then you can prescribe the right medicine. It is best for these patients to take more rest, minimize bedtime activities, pay attention to diet, and not to overexert themselves, which can effectively relieve the symptoms.