A neuroma or pinched nerve is an abnormal, noncancerous tumor of nerve tissues, states the American Podiatric Medical Association. It usually grows between a foot's third and fourth toes. Symptoms include swelling and numbness in the toes and a burning pain in the forefoot and the ball of the foot.
Factors that contribute to the formation of foot neuromas include wearing improper footwear such as high heels, trauma to the nerve tissue, foot deformities such as flat foot and repeated stress in certain occupations, cites the American Podiatric Medical Association. To prevent such a condition, a person needs to wear shoes with padding on the ball of the foot as well as avoid wearing high-heeled shoes or those with a narrow toe box.