If you have had Stage 3 lung cancer surgery which was successful you may be offered chemotherapy afterwards (this is called adjuvant chemotherapy). It is important that you understand both the benefits and risks of this treatment.The following information is called a patient decision aid. It explains how having chemotherapy after surgery for lung cancer is likely to affect your life. This will help you to decide whether or not to have chemotherapy. Please note that you have to be fit and well enough for your body to cope with this treatment. Your doctor will discuss this with you.