Oral cancer poses a significant threat to human health, thus early detection and treatment are crucial for effective outcomes. In addition to chronic, non-healing ulcers, early signs of oral cancer include abnormal growths, pain, bleeding, and relatively early metastasis. It can infiltrate nearby muscles involved in chewing and biting, the throat affecting swallowing and speech functions, and also spread to cervical lymph nodes, causing enlargement of these nodes. Therefore, besides the symptoms in the mouth, attention must also be given to adjacent organ tissues, especially the condition of the cervical lymph nodes, to ensure timely diagnosis and treatment for effective results.