The word 'cancer' is generally used to refer to a tumour, which occurs when some of the normally healthy cells in the body start to behave in an unnatural way - they change size and shape, multiply rapidly and start to spread into other parts of the body. As tumours can affect virtually every part of the body, there are many different types of cancer with different causes and symptoms. Causes The possible causes of cancer are far too numerous to list and indeed have not all been discovered, or proven. The skin may take on a sallow or grey tone. The nails are hard, brittle, often ridged and crack or break easily.
Hair tends to be dry and lifeless.
Swelling of the leg above the ankle which displays dimples and is sore when pressed. An ulcer which does not heal. A wart or mole which becomes larger or changes in any way. Any unusual bleeding or discharge. Gums bleed easily.