Oral cancer is a serious threat to human life among oral diseases, and its early symptoms are not particularly obvious, so it is necessary to remind people to pay attention. In addition to some local ulcers, patients with oral cancer have neoplastic cancer tissue growing at the ulcer base. The cancer tissue will develop and damage the masseter and chewing muscles, and it will also cause dysphagia and speech disorders, as well as lead to lymph node metastasis. As cancer cells grow and develop rapidly, they consume a large amount of the body's energy, so patients with oral cancer will experience significant weight loss in the later stages. At this time, in addition to cancer treatment, supportive symptomatic treatment is also needed to enhance the body's resistance.