You can use a mirror to check your back, or have someone check your back for you regularly. Itching and slight bleeding are common early findings. A sore that does not heal should be checked by your physician. Look for any changes in your moles. Melanoma skin cancer may develop in a pre-existing mole or normal skin.
Some moles are normal.
B order - uneven edges of the mole which may be notched or blurred. C olor - uneven colors with shades of brown, black, white, blue, pink or red. D iameter - larger than a pencil eraser or 6 millimeters. Moles may tend to change during pregnancy. If you are pregnant, have your moles checked by a dermatologist, particularly if you are at risk for skin cancer.