What causes an ingrown toenail?
Ingrown toenails can be caused by a variety of factors, including improper nail care, wearing shoes that are too tight, or having naturally curved or thick toenails. Steps can be taken to prevent an ingrown toenail from occurring, such as keeping feet clean and dry and wearing shoes that fit properly.
Shoes that are too small in the toe box, such as high heels or pointed-toe shoes, can cause the toes to become compressed and push the nail into the skin. Toenails should be cut straight across, rather than at an angle, to prevent the corners of the nail from growing into the skin.