Thymoma can be categorized into early, intermediate and advanced stages, and the survival rate varies according to the stage. 1. Early stage: After choosing surgical treatment for early stage of thymoma, the survival rate is higher, and patients can usually survive for more than 10 years. 2. Intermediate stage: The survival rate of patients in the intermediate stage can be more than 50% in 10 years. When patients adopt appropriate methods for treatment in time, the progress of tumor can be effectively blocked, and the survival time will be extended accordingly, and the 10-year survival rate is 67%. 3. Advanced stage: The survival rate of advanced thymoma is within 56%~59%. Patients with thymoma should go to the hospital in time and choose the appropriate method of treatment, which will help to improve the survival rate.