Skip to Content
Home > Health Information > Health Library > Birthmarks
A birthmark is a colored mark on or under a newborn baby's skin. Some birthmarks show up soon after a baby is born. Most birthmarks are obvious at birth. Some kinds of birthmarks fade or go away as a child gets older. Others stay the same or get bigger, darker, or thicker.
There are many kinds of birthmarks. They can be any size or shape and can be different colors, such as blue or blue-gray, brown, tan, black, pink, white, red, or purple. Some birthmarks are smooth, and some are raised or lumpy.
Nearly all birthmarks are harmless and painless. But it's important to have a doctor check all birthmarks, just to be sure they are okay.
Some birthmarks are from extra color (pigment) in the skin. Other birthmarks are blood vessels that are bunched together or don't grow normally.
It's not clear why some children have birthmarks and others don't.
Most birthmarks are harmless and need no treatment. Some will even fade or disappear over time. But in rare cases, birthmarks need treatment because they are growing quickly, growing on an internal organ, or causing a medical problem (such as a problem with sight, breathing, hearing, speech, or movement).
There are several ways to fade, shrink, or remove birthmarks. These include:
Your options will depend on the type of birthmark, where it is, and what problems it's causing. Treating a birthmark can be a big decision. The treatments may not work, and they can be painful and cause side effects.
If your child's birthmark bothers or worries you, try not to let your child know how you feel. Ask others not to make a big deal out of it. If a birthmark upsets your child, it may help to have your child talk with a trusted doctor. If your child is still upset, talking to a counselor or support group may be a good idea to help him or her feel better.
If you see a birthmark on your baby, make sure that a doctor has seen it. Although most birthmarks are harmless, some aren't.
If a birthmark grows, bleeds, hurts, or gets infected, see a doctor to have it checked.
Other Works Consulted
Chang MW (2012). Neonatal, pediatric, and adolescent dermatology. In LA Goldman et al., eds., Fitzpatrick's Dermatology in General Medicine, 8th ed., vol. 1, pp. 1185–1203. New York: McGraw-Hill.
Horii KA, Sharma V (2010). Pediatric dermatology. In JC Hall, ed., Sauer's Manual of Skin Diseases, 10th ed., pp. 425–440. Philadelphia: Lippincott Williams and Wilkins.
Mathes EF, Frieden IJ (2012). Vascular tumors. In LA Goldman et al., eds., Fitzpatrick's Dermatology in General Medicine, 8th ed., vol. 1, pp. 1456–1469. New York: McGraw-Hill.
Miller JH (2010). Hemangiomas. In MG Lebwohl et al., eds., Treatment of Skin Disease: Comprehensive Therapeutic Strategies, 3rd ed., pp. 289–291. Philadelphia: Mosby Elsevier.
Morelli JG (2011). Diseases of the neonate. In RM Kliegman et al., eds., Nelson Textbook of Pediatrics, 19th ed., pp. 2218–2222. Philadelphia: Saunders.
Swee TT, et al. (2010). Low-dose propranolol for infantile haemangioma. Journal of Plastic, Reconstructive and Aesthetic Surgery. Published online July 9, 2010 (doi:10.1016/j.bjps.2010.06.010).
Current as ofApril 17, 2018
Author: Healthwise StaffMedical Review: Kathleen Romito, MD - Family MedicineAdam Husney, MD - Family MedicineMartin J. Gabica, MD - Family MedicineJohn Pope, MD, MPH - Pediatrics
Current as of:
April 17, 2018
Medical Review:Kathleen Romito, MD - Family Medicine & Adam Husney, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine & John Pope, MD, MPH - Pediatrics
To learn more about Healthwise, visit Healthwise.org.
© 1995-2018 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.
You'll find Decision Points to help you answer questions about:
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
See important information from Billings Clinic on Non-discrimination and Interpreter Services.
Billings Clinic is proud to be an equal opportunity/affirmative action (EOE/AA) e-verify employer.