We always think its because of bad shoes but most patients get it because of bad genes! That is why we also see them in men.
I thought this new drawing i made on my ipad (I like the pencil) helps to simplify how a bunion forms
1. The bunion is not just an extra bone (marked 2, red). An tiny bit of the problem is that, but the main bump is made of the metatarsal (3) deviating outwards (1)
2. To fix it just shaving the bone is usually not enough, teh bone has to be broken to narrow the foot, a much better result