Generally, grade 2 oligodendrogliomas recur within 3 to 10 years, and there is a relationship between the specific recurrence time and the effectiveness of the treatment, the patient’s status and the type of pathology. The treatment of grade 2 oligodendroglioma is mainly based on surgery, but it is difficult to completely cure the disease, and some patients will recur after surgery, and the time of recurrence is related to the treatment mode and effect. The time of recurrence is related to the treatment method and effect. If the postoperative adjuvant treatment of radiation and chemotherapy is performed and the tumor clearance effect is still good, the time of recurrence will be longer accordingly. If the surgery fails to completely remove the original tumor or the patient’s own condition is poor, the recurrence time may be shorter. It is recommended that patients with oligodendroglioma undergo review every three months after discharge from the hospital in order to monitor the recovery situation in time. In normal times, patients should strengthen physical exercise, eat a light diet, keep a happy mood, avoid emotional excitement, etc., and consult a doctor in time if any discomfort occurs.