Ingrown toenails occur when a nail curves down at the sides and grows into the skin. Ingrown toenails most often occur with the big toe and be very painful. Ingrown toenail are usually caused by improper trimming of the nail. Improper footwear, trauma to the to the feet or heredity may also cause the condition. You should consult your podiatrist about this painful condition and not attempt to trim the nail on your own. For more information visit http://www.innovativefootandankle.com or to contact us to set up an appointment at one of our convenient New Jersey locations in Kenilworth, Bayonne, Cranford, and Little Ferry