Hard nails may be related to congenital hypertrichosis, onychomycosis and lichen planus.
1. Congenital thick nail disease: its cause is mainly related to keratin gene mutation and other factors, clinical manifestations of significant hypertrophy of the nails, palm and plantar hyperkeratosis and other symptoms, some patients will appear nail cover hard symptoms.
2. ringworm of the nail: ringworm of the nail may be caused by the skin fungus infection of the nail plate, mainly manifested as cloudy nail plate, thickening and unevenness. It may lead to the symptoms of hard nails.
3. lichen planus: the cause of lichen planus is not yet clear, considering and immunity, infection and genetic factors, the patient’s nails will appear hyperkeratosis, roughness and other symptoms, may appear nail cover hard symptoms.
There are many reasons for hard nails, so it is recommended that patients go to a regular hospital to undergo a relevant examination to determine the cause of the condition.