Tongue cancer is a major threat among oral diseases and requires early detection and treatment. Initially, it often presents as ulcers on the tongue, which are easily overlooked. A clear symptom is the recurrent appearance of ulcerative surfaces on the tongue, along with new growths. The base of the ulcer may be uneven, and secondary infection of the ulcer can cause local bleeding and pain. When the cancer invades the tongue muscles and neck muscles, there can be tongue movement disorders and speech difficulties. Swallowing may also be affected, and there could be lymph node metastasis in the neck. Therefore, upon diagnosis of cancer, comprehensive treatment should be immediately implemented to delay the progression of the disease.