Ingrown nails are nails whose corners or sides dig painfully into the skin, often causing infection. They are frequently caused by improper nail trimming but also by shoe pressure, injury, fungus infection, heredity, and poor foot structure. Toenails should be trimmed straight across, slightly longer than the end of the toe, with toenail clippers. If the ingrown portion of the nail is painful or infected, your podiatric physician may remove the affected portion; if the condition reoccurs frequently, your podiatrist may permanently remove the nail.
Information collected from the American Podiatric Medical Association, Inc