Kanker, or cancer, is a disease characterized by the uncontrolled growth of abnormal cells in the body. These cells can form tumors, invade nearby tissues, and spread to other parts of the body through the bloodstream or lymphatic system. There are many types of kanker, including breast cancer, lung cancer, and prostate cancer, each with its own causes and risk factors. The exact cause of kanker is often unknown, but certain factors can increase the risk, such as tobacco use, excessive alcohol consumption, and exposure to radiation or carcinogens. Early detection through screenings and regular check-ups can improve treatment outcomes and survival rates.