Bigfoot medical name “exostosis”, refers to [toe outward deviation more than the normal physiological angle of a foot deformity, is one of the most common painful diseases of the foot. Female incidence is more than male, the ratio of men to women is about 1U9 ~ 1U15. The onset of bigfoot and the current analysis include the following factors: 1, wearing shoes: wearing shoes is not the only cause of exostosis, but wearing narrow, high-heeled shoes is considered to be one of the important external causes of exostosis. 2, genetic factors: a family history of the disease and the presence of [exostosis deformity at a young age. 3, abnormal foot structure: such as flatfoot syndrome. 4, other causes: abnormal healing of metatarsal fractures. Ectropion manifestation: the first metatarsal head medial bone superfluous formation, and the shoe surface friction to form bursitis, also into [bursitis (pain), with the aggravation of the disease later often appear drooping toe, 2 toe riding, small toe bursitis, metatarsal plantar callus (weight-bearing pain) formation and other symptoms. The pathological changes are complex. Conservative treatment is ineffective, and surgery is an effective way to correct the deformity, relieve pain, and restore the function of the foot. There are more than 100 types of ectropion surgery methods, but there is no one special procedure that can solve all the big toe, several common surgical methods are as follows: a. Soft tissue surgery: mainly composed of 3 parts: 1. . The main methods are the Silver and McBride procedures, some of which need to be combined with [wedge osteotomy of the proximal phalanges of the toes (Akin procedure). These procedures are mostly suitable for patients with mild bunion deformity, mainly manifesting as capsular inflammatory symptoms. Bone osteotomy combined with soft tissue surgery: bone surgery is generally more thorough, with good results in correcting deformities and low recurrence rates after surgery. Minimally invasive surgery: It is a kind of bony surgery, in which three 0.5cm incisions are made in the distal metatarsal bone to remove the hyperplasia, lateral capsulotomy, distal metatarsal osteotomy, and the metatarsal head is pushed outward after the osteotomy, without fixation by kerf pins or dowel pins, and the small incision surgery has relatively more complications and the postoperative good rate is lower than that of open surgery, which should be carried out carefully. In conclusion, valgus is a complex disease and patients are advised to see a specialist hand and foot surgeon.