Tongue ulcers are a type of oral ulcer, generally characterized by localized erosion of the skin and soft tissue mucosa, with a surface showing some whitish substances. If a patient experiences long-term oral ulcers that do not heal over an extended period, it is recommended that they seek medical attention at a hospital to identify other possible causes. Various factors, including certain medications, foods, or other systemic diseases, can lead to tongue ulcers. Tongue ulcers persisting for two months are not necessarily indicative of tongue cancer, so patients are advised not to worry excessively but should promptly visit a hospital for appropriate diagnosis and treatment.