Ingrown toenail is a disease of both children and adults, causing discomfort or pain of varying degrees of severity. Depending on the stage of disease, it is often the cause of significant difficulties in daily life. Etiopathogenesis of ingrown nail covers external pressure, internal pressure and presence of additional factors. The course of the disease is usually chronic, and it affects mainly the big toe. Decompression shaft side, opening track nail growth and proper hygiene play the key role in prevention and treatment of the disease. Despite the existence of different treatments for ingrown nail, many of them have low efficacy, which is the reason for the high relapse rate.