Birthmarks are areas of discolored and/or raised skin that are present at birth or within a few weeks of birth. They can be flat or raised, have regular or irregular borders, and have different shades of coloring from brown, tan, black, or pale blue to pink, red, or purple. Most birthmarks are harmless and do not require treatment, and many even go away on their own or shrink over time.
The exact cause of why birthmarks develop is unknown, but most are harmless and happen by chance. They are not caused by anything the mother did wrong during pregnancy, and they are not related to trauma to the skin during childbirth. Some kinds of birthmarks may run in families, but a genetic cause hasnt been found. Different types of birthmarks have different causes. For example, red birthmarks are caused by an overgrowth of blood vessels, while blue or brown birthmarks are caused by pigment cells (melanocytes).
In summary, the cause of most birthmarks is unknown, but they are not caused by anything done or not done during pregnancy, and they are not related to trauma to the skin during childbirth. Most birthmarks are harmless and do not require treatment.
