Herpes on the tongue is mainly caused by exposure to herpes simplex virus and varicella-zoster virus. 1. Herpes simplex virus and varicella-zoster virus infections can cause herpes on the tongue, accompanied by pain, and even invade other parts of the body, requiring timely medical treatment. 2. Herpes simplex virus, varicella zoster virus invades the tongue area, it will begin to multiply, growth, so it will show herpes, pain, and later herpes will also appear to break out, the formation of ulcers, which will lead to the patient’s difficulty in eating, and even infected with the peripheral nerves. Herpes on the tongue is due to the infection of herpes virus, the patient should go to the hospital in time to improve the examination, under the guidance of the doctor to take standardized treatment, do not take the treatment, so as not to lead to adverse consequences.