Abnormal moles - image description

The illustration shows four of the symptoms of melanoma to look out for as part of the ABCDE checklist. Below a letter A is an irregular shaped mole. Below a letter B is a mole with jagged edges. Below a letter C is a mole made up of different shades of brown and black. Below a letter D is a mole that is larger than the blunt end of a pencil, which is shown for comparison.