Hi, Thanks for writing in. It is important to take chemotherapy for dysgerminoma after surgery. Stage 1 requires only surgery because it is aimmature teratoma. However higher stage is best treated with chemotherapy. Dysgerminomas are usually very sensitive to chemo, and can sometimes be treated with the less toxic combination of carboplatin and etoposide. Giving chemotherapy will control the disease and prevent recurrence. Recurrence takes place in few patients even after surgery. That is why probably your doctors have recommended chemotherapy. With chemotherapy survival rates are high in the early stages. Almost every patient will respond to treatment. In cancer survival 5 year is considered a benchmark for treatment. If a patient survives for 5 years then their cancer is considered treated. Patients can live for a life time. Please do not worry.