A neuroma is not a true tumor, but rather a buildup of scar-like tissue (perineural fibrosis) that results from compression and irritation of a nerve. The condition is also sometimes called Morton’s neuroma, after American surgeon Thomas George Morton, who first described the condition in 1876.

The pain of a neuroma is often aggravated by walking or wearing shoes. High heels or shoes with a narrow toe box (such as high-heeled boots) can contribute to the development of a neuroma.

Neuromas are treated with a combination of rest, ice, anti-inflammatory medication, and injections. In some cases, orthotic devices such as arch supports or custom-fitted shoe inserts may be recommended to offload pressure from the affected area. In severe cases, surgery may be necessary to remove the neuroma.