What’s with the horizontal lines on the fingernail caps?

Horizontal lines on the nail cover may be caused by ringworm of the nail, nail dystrophy and other diseases.
1. Ringworm of the nails: Nails may show symptoms of infection through direct or indirect contact with fungi, making the surface of the nails uneven or the nails deformed and thickened, resulting in horizontal lines on the nails or even nail peeling.
2. Nail dystrophy: the disease may be caused by hereditary diseases, such as palmoplantar keratosis, dystrophic herpetic epidermolysis bullosa, etc.; it may also be caused by certain acquired factors, such as lichen planus, dry syndrome, long-term exposure to irritating chemicals, etc., which can lead to the growth and development of the nail plate being affected, and the appearance of deformation of the nails or the nails with transverse stripes.
Nail cover with horizontal lines may also be caused by other diseases, it is recommended that the patient timely to the hospital dermatology consultation, under the guidance of the doctor to clarify the specific causes of the disease, and then targeted treatment. Protect your nails in your daily life and develop good living and eating habits.