A bunion is a deformity of the foot characterized by an enlarged joint behind the big toe, and often includes misalignment of the big toe. Although it can be common in several family members it is not actually inherited, nor is it caused by wearing pointed shoes. Your inherited bone structure and the footwear you use certainly affect bunions, however they are actually caused by forces produced in the way you function.
Therefore, improving foot function, thus reducing stresses which cause bunions, is very important. Such things as addressing proper footwear, orthotics and appropriate exercises can be very effective in preventing, or stopping the progression of bunions.