Cancer can be divided depending on its origin into 4 main types:
1. Carcinoma: is the cancer happening in Epithelia tissues, like the skin or the surface lining the internal organs as colon, lung, liver, prostate and others.
2. Sarcoma: starts in the connective tissue, the part that connects and supports the body, as muscles, fat, bone, cartilage, nerves, joints, blood vessels and lymph vessels.
3. Leukemias: is a cancer of the white blood cells. It begins when healthy white blood cells change and grow uncontrollably. It can be categorised into 4 main types:
4. Acute myeloid leukemia,
5. Chronic myeloid leukemia,
6. Acute lymphocytic leukemia, and
7. Chronic lymphocytic leukemia.
8. Lymphomas: starts in the lymphatic system, a system made of vessels and glands which helps to fight infection and cancer.