Because wearing the shoes do not fit caused、 usually due to wear shoes with high、 too sharp and too narrow shoes、 so easily fixed heel、 toe squeeze caused by friction and oppression、 not only affect the toes stretching and activity、 causing discomfort and pain、 but also damage the original three foothold function、 and body weight falls on the foot when walking the front、 toes due to body weight gradually deformed oppression、 will cause hallux valgus phenomenon.