A groove in the nail can be caused by trauma, malnutrition or lichen planus.
1. Trauma: If the nails are crushed or bumped on the outside of the nail, resulting in trauma to the nail, a groove in the nail may occur.
2. Malnutrition: If the patient has been partial to food for a long time, leading to the lack of trace elements in the body, affecting the growth of the nails, so that the nails will change, and the symptoms of nails concave in a horizontal groove.
3. Nail lichen planus: the cause of the disease is still unclear, may be related to immunity, genetics, infection and other factors, will lead to changes in the nails, resulting in the emergence of nails concave a horizontal groove of the situation.
If the patient has a groove in the nail, it is recommended that the patient consult a doctor in a timely manner, and under the guidance of the doctor for treatment.