Hello, I'm an expert in dermatology with a focus on skin conditions and pigmentations. When it comes to birthmarks, they can actually come in a variety of colors depending on the type and cause. Here's a brief overview:


1. Red or pink: These are often caused by an excess of blood vessels in the skin, such as with a strawberry hemangioma or a port-wine stain.

2. Brown: This is a common color for birthmarks like moles or café-au-lait spots, which are caused by an increase in melanin, the pigment that gives color to our skin, hair, and eyes.

3. Blue or purple: These can be due to dermal melanocytosis, also known as a Mongolian spot, where melanin is deposited deeper in the skin.

It's important to note that the color of a birthmark can change over time and may be influenced by factors such as sun exposure, hormonal changes, and aging. If there are any concerns about a birthmark, it's always best to consult with a dermatologist.

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Birthmarks are colored skin spots that either are present at birth or develop shortly after birth. Birthmarks can be many different colors, including brown, tan, black, pale blue, pink, white, red, or purple.read more >>