The initial symptoms of tongue cancer are not obvious and are usually difficult to detect. When symptoms appear, it may be the middle or late stage of tongue cancer. Tongue cancer is a malignant tumor that occurs mainly on the body of the tongue and is mostly seen in male patients. The cause of tongue cancer is less certain, but it is generally believed to be frequent exposure to something too hot or too cold, which leads to long-term sensory changes in the tongue and may eventually lead to cancer. Some chemical factors such as ultraviolet light, X-rays and other radioactive substances may cause cancer. Neuropsychological factors, endocrine factors, immunity of the body and other genetic factors may occur tongue cancer. The main symptoms of tongue cancer are: ulcers will often appear in the mouth, ulcers will not heal repeatedly, pain will be more obvious, tongue movement will be restricted, eating and swallowing will be affected, tongue body will be enlarged, and pus may break out. If an elderly person experiences irritating pain at the back of the tongue, severe pain when eating, and grayish-white membranous material on the surface of the tongue, etc., tongue cancer should be considered. The symptoms of tongue cancer in the middle and late stages are more obvious, which will seriously affect activities such as speaking and eating, and even the movement of opening the mouth. If ulcers appear frequently, you should go to hospital for examination in time to exclude the occurrence of cancer, and if found, treat it in time with drugs and radiotherapy treatment. Symptoms of tongue cancer in the middle and late stages are more obvious, and pain, irritation as well as tongue movement will be restricted.