Give me a 5 sentence paragraph on cancer

Cancer is a complex and devastating disease. It occurs when abnormal cells divide and multiply uncontrollably, forming tumors that can invade and damage surrounding tissues. There are many types of cancer, such as breast, lung, colon, and skin cancer, each with its own characteristics and potential treatment options. Cancer can arise due to a variety of factors, including genetic mutations, exposure to carcinogens, unhealthy lifestyle habits, and certain infections. Early detection and diagnosis are crucial in improving cancer outcomes, and treatment approaches may include surgery, chemotherapy, radiation therapy, targeted therapies, immunotherapy, or a combination of these methods.