The condition in which a nail grows into the side of the nail fold is called onychocryptosis. For some individuals, this issue recurs frequently and causes significant discomfort, reducing their quality of life. The main causes of an ingrown toenail include:
Nail injuries
Poor hygiene
Heredity
Improper nail trimming
Tight footwear
Diabetes mellitus
Fungal infections
To prevent this condition, follow these hygiene practices: wash your feet daily, change socks regularly, etc.
Trim your nails correctly – nails should be cut straight across, not rounded.
At the first signs of a fungal infection – such as yellowing of the nails, irritation, etc. – consult a doctor and choose comfortable footwear.