Bones protruding from the outer edges of the right and left feet may be caused by developmental malformations, fractures, osteophytes and other factors. 1. Developmental deformities: When one is in the fetal period, the mother’s intake of nutrients is seriously insufficient. This leads to deformities in bone development, which in turn can cause bone protrusion on the outer edge of the right and left feet. 2. Fracture: If the patient is hit by heavy objects on the right or left foot in daily life, and fails to seek medical treatment in time, the patient may suffer a fracture. If the patient fails to seek medical treatment in time, it can also lead to the protrusion of the bones at the outer edge of the left and right feet. 3. Osteochondrosis: If the patient has to do physical labor for a long time and consume too little nutrients, the cartilage of the right and left foot joints will be degraded. In daily life, it can also induce the phenomenon of the bone protruding from the outer edge of the right and left foot. It is recommended to go to the regular hospital for a comprehensive examination to avoid delaying the treatment time and aggravating the condition. At the same time, it is also necessary to pay attention to the choice of comfortable shoes and socks, reduce physical labor, and more light and nutrient-rich food.