About 80% of babies are born with at least one birthmark, which is a discolored area of skin on their body. Some birthmarks fade or disappear over time, while others can cause health problems.

birthmark is a discolored patch on the skin that appears at birth or develops in the first few weeks of life. Birthmarks are very common in newborns and in most cases do not require treatment, are harmless, or even disappear or shrink over time as the child grows. However, sometimes birthmarks are associated with other underlying health problems.