The reasons that lead to walking grinding shoes heel outside, mainly the following aspects: First, consider is due to wearing shoes too tight, so the heel of the shoe will lead to friction, which leads to long-term friction of the heel of the body, easy to cause skin keratinization and cause pain, serious cases will also cause infection and so on. Second, consider the body’s heel development deformity caused by the heel bone protrusion, which causes walking when the heel of the shoe outside. First of all, when wearing shoes in general, we should pick loose and soft shoes, do not wear too tight shoes, if the body has a mild deformity of the heel, if necessary, you can consider performing orthopedic surgery treatment.