Whether myasthenia gravis thymoma will get better after surgery varies from person to person, but most symptoms are relieved or cured after surgery. Myasthenia gravis is an acquired autoimmune disease that can be associated with increased thymus weight and lymphoid follicular hyperplasia in 80% of patients, and thymoma in 10-20% of patients. Thymectomy allows both cellular and humoral immunity to be suppressed and helps to correct the immunoregulatory disturbances in myasthenia gravis. The majority (about 70%) of patients are relieved or cured of their symptoms after surgery. Indications for thymus surgery in myasthenia gravis include those with thymic hypertrophy and high acetylcholine receptor antibody potency, patients with all types of myasthenia gravis with thymoma, and those who are not satisfied with the results of drug therapy. It is recommended that patients with myasthenia gravis seek timely medical attention and active treatment under the guidance of a doctor to avoid delays.