Breast cancer, leukemia and melanoma are three types of cancer, states the American Cancer Society. The uncontrolled growth of abnormal cells causes malignancy. There are more than 100 known kinds of cancer as of 2015.
Breast cancer occurs more often in females, but males are susceptible, states the American Cancer Society. Breast cancer can affect the lymphatic system, which can result in rapid spread throughout the body. Leukemia affects the blood-making tissues, including bone marrow, usually creating a rapid growth of abnormal white blood cells that cannot fight infection as they should, according to Mayo Clinic. Melanoma most often results from overexposure to sunlight, states the American Cancer Society.