Black toenails may be caused by trauma, athlete’s foot, onychomycosis and other factors.
1. trauma: suffered an external blow, the toenail area is damaged, so that the toenail there is bruising, it will lead to black toenails, may also be accompanied by pain and swelling and other symptoms.
2. Tinea pedis: usually associated with fungal infection, the infection continues to worsen, into the nail plate, leading to the destruction of the entire nail plate, will make the toenail black, may also be accompanied by thickening, turbidity and other symptoms.
3. Nail mother’s mole: belongs to a type of nevus, usually grows at the root of the toenail, with the growth of the toenail, it will cause the toenail to be black, without other clinical symptoms.
If your toenails are black, it is recommended that you consult a doctor in time to clarify the specific cause of the disease and treat it under the doctor’s guidance.