Cancer can originate almost anywhere in the body.

Carcinomas, the most common types of cancer, arise from the cells that cover external and internal body surfaces. Lung, breast, and colon are the most frequent cancers of this type in India.

Sarcomas are cancers arising from cells found in the supporting tissues of the body such as bone, cartilage, fat, connective tissue, and muscle.

Lymphomas
 are cancers that arise in the lymph nodes and tissues of the body's immune system.

Leukemia's are cancers of the immature blood cells that grow in the bone marrow and tend to accumulate in large numbers in the bloodstream.