Nails with horizontal ridges are often caused by onychomycosis, nail dystrophy or some chronic skin diseases of the hands.
1. Ringworm of the nails: ringworm of the nails is caused by fungal infections, mostly caused by the gradual spread of the fungus on the fingers to the nails, but also may be caused by the use of nail clippers and other items indirectly transmitted by ringworm patients.
2. Nail dystrophy: the reason for the formation of nail dystrophy is mainly due to the lack of calcium, zinc and other trace elements, but also may be the nails in contact with some chemicals will be traumatized.
3. Chronic skin diseases: some chronic skin diseases such as psoriasis, chronic eczema, continuous limb dermatitis will damage the nail mother part, so that the appearance of the newly grown nails change.
Nails appear horizontal lines need to go to the hospital dermatology department in time to deal with, and under the guidance of the doctor for treatment.