Swelling and pain in the foot are relatively common reasons for clinical visits. Common causes include acute injury, chronic strain, infection, aseptic inflammation, localized swelling, and other systemic diseases, which are more common. Acute injuries are caused by acute injuries resulting in local swelling, pain, and in severe cases, fractures and local deformities. Chronic strain injuries can also produce local tissue congestion, edema, and inflammatory reactions due to cumulative injury, resulting in swelling and pain. Infection is an inflammation of the foot tissue due to bacteria causing septicemia, which can also lead to swelling and pain. Localized swellings are common, such as bone tumors, and tendon sheath cysts, which can cause swelling and compressive pain symptoms. Other systemic diseases in the body can also cause swelling and pain in the foot. Gouty arthritis, commonly caused by gout, can also cause localized symptoms of redness, swelling and pain. Patients are advised to go to the hospital for detailed examination and clear diagnosis.