A neuroma is a noncancerous (benign) growth of nerve tissue that can develop in various parts of your body. Morton's neuroma occurs in a nerve in your foot, often between your third and fourth toes. The condition isn't a true tumor, but instead involves a thickening of the tissue around one of the digital nerves leading to your toes. Morton's neuroma causes a sharp, burning pain in the ball of your foot. Your toes also may sting, burn or feel numb if you have Morton's neuroma.
Also called plantar neuroma or intermetatarsal neuroma, Morton's neuroma may occur in response to irritation, injury or pressure — such as from wearing tightfitting shoes. But Morton's neuroma may also occur for unknown reasons.
Treatments for Morton's neuroma commonly involve changing footwear, resting your foot, and using arch supports or pads to help take pressure off the area. In some cases, your doctor may recommend anti-inflammatory drugs, a cortisone injection or even surgery if you have Morton's neuroma.