Some women get hard corns on the tops of their toes that are often associated with hammer toes or claw toes. The toes become permanently bent, crooked or cocked up from being in the same position, especially in tight high heels. Many of these problems can be alleviated by wearing a wider, deeper shoe with flatter heels.
Some women complain of intermittent burning pain in the foot. They often have to stop and remove the shoe or rub the foot. This is typical of neuroma pain. This condition is a pinched nerve in the foot between two bones in the forefoot. It is really like a callus along the nerve from excessive pressure inside the foot rather than a tumour. Relief can be obtained by widening the shoe and lowering the heel.
These conditions can be seen without shoes, but there is no doubt that they can be caused and aggravated by improperly fitting shoes.