Skin cancer is by far the most common type of cancer. If you know what to look for, you can spot warning signs of skin cancer early. Finding it early, when it’s small and has not spread, makes skin cancer much easier to treat.
Some doctors and other health care professionals include skin exams as part of routine health check-ups. Many doctors also recommend that you check your own skin about once a month. Look at your skin in a well-lit room in front of a full-length mirror. Use a hand-held mirror to look at areas that are hard to see.
Use the “ABCDE rule” to look for some of the common signs of melanoma, one of the deadliest forms of skin cancer:
Asymmetry
One part of a mole or birthmark doesn’t match the other.
Border
The edges are irregular, ragged, notched, or blurred.