A foot neuroma, also known as a Morton's neuroma, is swelling in the nerve or inflammation around the nerve at the base of a toe, according to the Cleveland Clinic. The nerve affected by Morton's neuroma runs from the foot surface to the toes.
A neuroma causes pain in the two adjacent toes. Severe, intermittent pain can occur in the ball of the foot from the pressures of walking, standing and wearing shoes. Some patients also experience numbness in the toes or sharp, sudden pains. Patients may experience pain relief after removing their shoes, thus lessening the pressure on the neuroma. According to the Cleveland Clinic, several nonsurgical treatments can be effective in treating neuromas, including wearing shoes with a roomy toe box and wearing shoe inserts.