I. What is a bunion? Hallux valgus: also known as big toe or first metatarsal phalangeal arthritis, is a foot deformity in which the bunion is deflected outward beyond the normal physiological angle, and is currently one of the most common foot diseases. Female incidence is more than male, the ratio of men to women is about 1:9 – 1:15. Second, the cause of bunions: 1, family genetic factors accounted for 70% (maternal genetic accounted for a higher proportion). 2, like to wear high heels of the beautiful ladies a family. 3, foot trauma, rheumatoid arthritis, polio sequelae, etc. Third, the harm of bunion 1, the first metatarsal inversion, bunions cause local pain. 2. Soft tissue balance change, deformity, and unattractive. 3. Subluxation of the 1st metatarsophalangeal joint, deformity of the 2nd and 3rd toe hammer toe or claw toe. 4.The 2nd, 3rd and 4th metatarsal heads under the corpus callosum cause pain. 5, foot mechanics changes affecting the ankle, knee, hip and spine cause new diseases. Fourth, how to prevent bunions? 1. Avoid wearing high heels with a pointed toe for a long time. 2.Visit orthopedics promptly after foot trauma. 3, such as minor bunions or minor bunions toe pain should be rested after the occurrence of physical therapy treatment. 4, prevention is better than treatment, foot deformity pain is more severe or affect other toes should be surgical treatment. The advantages of minimally invasive treatment of bunion in our hospital 1, small incision, no scar, beautiful after surgery 2, immediately after surgery to walk on the ground, does not affect life 3, less pain, fast healing 4, surgery under local anesthesia, less impact on the whole body 5, simultaneous correction of multiple deformities 6, no internal and external fixation, avoid secondary surgery and joint stiffness 7, low cost, complete orthopedic Our orthopedic department has carried out metatarsophalangeal arthritis, bursitis The Department of Orthopaedic Surgery of our hospital has carried out the treatment of metatarsophalangeal arthritis, bursitis, aseptic necrosis of the 2nd metatarsal head, foot callus and corns, secondary metatarsophalangeal joint dislocation, hammer toe, claw toe, little toe bursitis, little toe inversion, intermetatarsal neuroma, bunion traditional incision surgery and fracture bone disease.