Toenail root broken in half, may be due to trauma, gray toenails and other factors, it is recommended that patients go to the hospital in time for examination, can be under the guidance of the doctor to use drugs or take surgical methods of treatment. 1. Trauma: When the surface of the nail is hit in daily life, it may cause the nail root to break. It is recommended to go to the hospital for examination in time and use iodine povidic disinfection under the guidance of the doctor, then bandage it and avoid contact with water. 2. Gray nails: usually caused by infection with fungal viruses, when the virus enters the nail bed, it may lead to nail lesions, making the nail surface thin and brittle, thus resulting in the phenomenon of broken toenails at the root. It can be treated with drugs such as amorolfine cream and cyclopiazide cream as prescribed by the doctor, and for more serious cases, surgical methods such as nail removal can be used for treatment. When the root of the toenail is broken in half, it is recommended that the patient consult a doctor in time to avoid delaying the condition.