Causes of Ingrown Toenail • Incorrect trimming of toenails producing sharp angles which are likely to grow into the skin • Irregular and curved toenails • Tight footwear, socks and stockings • Atheletic activities that involve repeatedly kicking or exerting pressure on toes e.g. ballet, kickboxing, soccer and football • Toenail injury • Improper foot hygiene • Genetic predisposition