Read as much as you want on BostonGlobe.com, anywhere and anytime, for just 99¢.

What does melanoma look like?

Melanomas can start in a mole that is already present on the skin or can begin as a new spot, then grow larger and deeper over time. The Melanoma Foundation offers these ABCDE signs of melanoma, and advises anyone who notices changes in the color, shape, or size of moles to be checked by a doctor.

■ Asymmetry

Continue reading below

■ Border irregularity

■ Color variation (especially the color black)

■ Diameter of more than 6 millimeters

■ Evolving

SOURCE: Melanoma Foundation

Loading comments...
Subscriber Log In

You have reached the limit of 5 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week
Marketing image of BostonGlobe.com
Marketing image of BostonGlobe.com