1, genetic factors, hallux valgus is a disease with strong genetic tendency, which is mainly maternal inheritance, that is to say, it is passed down from grandma to the next generation. However, there is no correlation between the severity of hallux valgus and the genetic generation. Grandma and grandma may be more serious, but the hallux valgus of offspring may be lighter.

2. The second cause of hallux valgus is external cause, which is mainly related to wearing shoes. Sometimes wear shoes that are too tight in front or lesbians like to wear high heels, because the space in front of these shoes is narrow and the five toes will be crowded together. At this time, hallux valgus will be caused by external force, which will aggravate the development of hallux valgus for a long time;

3. Hallux valgus caused by other diseases, such as severe flatfoot and rheumatoid arthritis, will lead to deformity of the first metatarsophalangeal joint, and then hallux valgus will occur because of joint posture or soft tissue imbalance caused by rheumatoid arthritis.