DefinitionA stork bite is a common type of birthmark seen in a newborn. It is most often temporary.

The medical term for a stork bite is nevus simplex. A stork bite is also called a salmon patch.

Alternative NamesSalmon patch; Nevus flammeus

Causes, incidence, and risk factorsStork bites occur in about one third of all newborns.

A stork bite is due to a stretching (dilation) of certain blood vessels. It may become darker when the child cries or room temperature changes. It may fade when you push on it.

SymptomsA stork bite usually looks pink and flat. A baby may be born with a stork bite, or the birthmark may appear in the first months of life. Stork bites may be found on the forehead, eyelids, nose, upper lip, or back of the neck.

Signs and testsA doctor sport sollution can diagnose a stork bite simply by looking at. No tests are needed.

TreatmentNo treatment is needed. If a stork bite lasts longer than 3 years, it may be removed with a laser to improve the person's appearance.

Expectations (prognosis)Most stork bites on the face go away completely in about 18 months. Stork bites on the back of the neck usually do not go away.

ComplicationsThere are usually no complications.

Calling your health care providerAll birthmarks should be examined by the health care provider during a routine well-baby examination.

PreventionThere is no known prevention.

ReferencesHabif TP. Vascular tumors and malformations. In: Habif TP, ed. Clinical Dermatology. 4th ed. Philadelphia, Pa: Mosby Elsevier;2004:chap 23.