Skin Cancers are cancers that arise from the skin. They are due to the development of abnormal cells that have the ability to invade or spread to other parts of the body. Skin cancers are surprisingly common on the feet. Any moles or dark patches of skin that are present and change or appear should be checked by your GP or specialist. Your Podiatrist can monitor the skin on your feet closely – especially for people who find it difficult to get down and see their feet – and will refer you to your GP for further assessment if they are concerned.