Stork Bite: Causes, Treatments, and What to Expect

Introduction

A stork bite, also known as an angel kiss or salmon patch, is a common type of birthmark that appears on a newborn’s skin, typically on the forehead, eyelids, or back of the neck. This congenital capillary malformation is characterized by its pink, red, or purple color and is present in up to 80% of infants.

Appearance and Characteristics

Stork bites are flat, pale pink to dark red patches on the skin that result from stretched or dilated tiny blood vessels called capillaries. They commonly appear on the forehead, eyelids, or nape of the neck and may darken when the baby cries or experiences temperature changes.

Causes

The exact cause of stork bites is uncertain, but they are thought to occur due to a temporary stretching and dilation of small blood vessels in the skin during fetal development [1]. While the cause is not definitively known, stork bites are considered a benign and common finding in newborns.

Diagnosis

Stork bites are typically diagnosed based on their distinctive appearance and location. A pediatrician can easily identify a stork bite during a routine newborn examination. No additional tests are usually necessary to diagnose this common birthmark.

Prevalence and Epidemiology

Stork bites are one of the most common types of birthmarks, present in up to 80% of newborns [1]. They occur equally in males and females and across all ethnicities.

Natural History and Prognosis

Most stork bites fade and disappear naturally within the first year of life, often within the first few months [2]. In some cases, particularly those on the back of the neck, stork bites may persist into adulthood but are typically covered by hair.

Treatments and Management

Treatment for stork bites is not usually necessary as they tend to resolve on their own with time. If a stork bite persists and is of cosmetic concern, laser therapy may be considered later in life. However, most stork bites do not require any medical intervention.

When to See a Doctor

While stork bites are generally h armless, it is essential to have any unusual marks or skin changes evaluated by a pediatrician. If a birthmark rapidly changes in size, shape, or color, or if there are any signs of ulceration or bleeding, prompt medical assessment is necessary.

Stork Bite vs Other Birthmarks

Stork bites are often confused with other types of birthmarks, such as hemangiomas or port-wine stains. However, stork bites are typically lighter in color, flat, and tend to fade over time, while hemangiomas are raised and may continue to grow before eventually regressing [3]. Port-wine stains are usually darker and do not fade with time.

Additional Resources

• MedlinePlus Medical Encyclopedia – Birthmarks
• BabyCenter – Stork Bites (Angel Kisses)