While they may seem like just a nuisance, they may be indicating there is something wrong.
Patients with alopecia areata may use steroid injections, topical minoxidil, topical corticosteroids, topical immunotherapy or ultraviolet light therapy as part of their treatment.
It's usually a symptom of an underlying autoimmune or skin condition, such as psoriasis, sarcoidosis, and lichen planus.
Other health issues causing vertical lines on fingernails accompanied include , rheumatoid arthritis, and peripheral vascular disease.
The dents in the nails can be shallow or deep.
Horizontal ridges can be caused by trauma to the nail and may be deep or discolored.