Nasopharyngeal carcinoma is a relatively common type of head and neck malignant tumor. Currently, radiation therapy is commonly used for treatment. Depending on the severity of the patient's condition, some patients may also need to combine chemotherapy. The specific treatment effectiveness varies from individual to individual, and some patients can achieve clinical cure. For early-stage nasopharyngeal carcinoma, the treatment effectiveness is relatively good, and the clinical cure rate is comparatively high. For mid to late-stage nasopharyngeal carcinoma, the treatment becomes more challenging, and the treatment effectiveness is relatively poorer. After treatment, regular check-ups are required to monitor the recovery of the condition. If no recurrence or distant metastasis is found five years after treatment, the patient is considered clinically cured.