If detected early, lot can be done to win the battle against cancer. Cancer prevention is action taken to lower the risk of getting cancer. This can include maintaining a healthy lifestyle, avoiding exposure to known cancer-causing substances, and taking medicines or vaccines that can prevent cancer from developing. There is a definite need for cancer prevention as if we follow certain Do’s and don’ts; we might reduce the risk of getting cancer. We all know that prevention is better than cure so if we don’t want cancer to become a reality of our lives, we must check cancer beforehand by following certain preventive measures. To follow a better preventive measure against cancer, two preventive measures are available, namely: Primary Prevention and Secondary Prevention. The details of these two preventive steps are given below.