It is caused by wearing inappropriate shoes, usually because the heel is too high, too sharp and too narrow, which makes it difficult to fix the heel, causing squeezing friction and oppression on the toes, which not only affects the extension and movement of the toes, but also causes discomfort and pain, and also destroys the functions of the original three footholds. When walking, the whole body weight falls on the front end of the foot, the toes will gradually deform due to the pressure of the body weight, and calluses will form on the soles of the feet. The pain caused by the stress between the forefoot and the ground can be effectively relieved through the forefoot pad of hallux valgus.