Patients with painful symptoms at the root of the big toe, commonly due to local sprains and osteoarthritis, as follows: First, local sprains: during strenuous exercise, sprains can occur at the root of the big toe, causing local swelling and painful symptoms, and if a fracture occurs, the pain is more pronounced, mainly in middle-aged and elderly patients with severe osteoporosis prone to fractures. Second, osteoarthritis: osteoarthritis of the first metatarsal toe is the first metatarsal and the near joint of the bunion constitute the first metatarsophalangeal joint, prolonged excessive weight bearing will lead to degenerative changes in the first metatarsophalangeal joint, forming osteoarthritis, the patient will show symptoms of pain at the root of the big toe when weight bearing, and accompanied by joint movement restrictions, joint swelling, and even joint deformity, serious cases will also be accompanied by bunions. Mild cases can be treated conservatively, while severe cases require surgery to completely relieve the inflammation of the joint, usually by artificial joint replacement.