Congenital nevus birthmark
Previous Next 3 of 7 Congenital nevus

Usually present at birth, a congenital nevus is a painless, large, dark-colored mole that typically appears on the scalp or trunk of the body. It can range in size from a couple of millimeters to several centimeters in diameter, covering large areas.

Children with a congenital nevus — especially those with a large-sized nevus — are at an increased risk of developing skin cancer as adults. If your child has this type of birthmark, consult your doctor so that he or she can check for skin changes. Treatment may be considered depending on the size, location and risk of skin cancer.

From Mayo Clinic to your inbox

Sign up for free, and stay up to date on research advancements, health tips and current health topics, like COVID-19, plus expertise on managing health.

To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail.

Sept. 02, 2020

See also