New or changing moles or lesions
When it comes to new or changing moles or other body marks, look for the ABCDEs of melanoma, according to Natalie Yin, MD, assistant professor of dermatology at Columbia University Medical Center. A stands for asymmetry; B for borders (irregular or ill-defined ones); C for colour (more than one colour is concerning); D for diameter (larger lesions need checking); and E for evolution (lesions changing over time), says Dr. Yin.
Other concerning body marks that may be signs of skin cancer include non-healing sores and new moles appearing later in life. “Patients should have a low threshold for seeing their board-certified dermatologist if they notice any concerning spots on their bodies for prompt evaluation,” Dr. Yin says.
