Early stage of tongue cancer is generally difficult to detect, and the symptoms are not obvious, so it is easy to be ignored. The early symptoms of tongue cancer are lighter and the lesions are smaller, so it is easier to treat and the healing time is shorter. Early tongue cancer should be observed. Early symptoms will include increased secretion and difficulty in swallowing. If there is unexplained bleeding in the mouth or difficulty in opening the mouth, tongue cancer should be considered as a symptom. Tongue cancer may also appear as ulcers. Long-term ulcers in the oral mucosa, repeatedly failing to heal completely, and the mucosa is pale and lusterless, often showing symptoms such as redness, edema or erosion of the mouth, may also be symptoms of tongue cancer. Generally tongue cancer does not cause pain and discomfort, but when some of the above symptoms appear, you should go to hospital for examination in time. Generally, early tongue cancer does not have obvious dysfunction, pain is not obvious, tongue movement is basically normal, and basic eating, swallowing and speech functions are basically not affected. If tongue cancer is detected early, its early treatment effect is obvious, with more kinds of drugs and short healing time. Therefore, it cannot be ignored, detected early and treated early. If tongue cancer is not treated early, it will develop speech dysfunction and affect the functions of eating and chewing. Early symptoms of tongue cancer are usually not obvious and need to be observed carefully.