6. Skin changes
Skin cancer is considered to be the most common type of cancer and sometimes it can be difficult to recognize it in the early stages. Anytime you have a freckle, wart, or mole that changes color, size, or shape, or if it loses its sharp border, then you should have it checked out for melanoma or some of the other types of skin cancer.
However, besides skin cancers, other cancers can also cause skin changes.
Pay attention to signs and symptoms which include: darker, yellowish or reddened skin, itching, bleeding, etc.