What is Morton's neuroma?

A neuroma is the thickening of nerves that may develop in various parts of the body.

The most common neuroma in the foot is a Morton’s neuroma, which occurs between the third and fourth toes affecting the nerves leading to the toes.

This nerve thickening happens due to compression and irritation such as wearing narrow shoes or high heeled shoes which can cause toes to be forced into the toe box. It can also be caused by abnormal foot biomechanics.