Birthmarks

Exams and Tests

Most birthmarks are diagnosed by a careful medical history and physical exam. Sometimes a doctor will monitor changes in a birthmark by taking photos of the birthmark over a period of time. All birthmarks need to be checked by a doctor.

If a doctor suspects that your child has other problems, he or she may do a blood test or do other tests to check your child's internal organs (liver, lungs, stomach, or intestines). Additional tests might include MRI or ultrasound. In rare cases, a doctor cuts out a piece of the birthmark (biopsy) to make a diagnosis.

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Author:	Debby Golonka, MPH	Last Updated: March 25, 2009
Medical Review:	Michael J. Sexton, MD - Pediatrics Alexander H. Murray, MD, FRCPC - Dermatology
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