Hello, I'm a medical expert with a focus on dermatology. I can provide you with information on the causes of strawberry birthmarks.

A strawberry birthmark, also known as a capillary hemangioma, is a type of vascular tumor that is present at birth or appears shortly after. It is characterized by a raised, red, and bumpy appearance, similar to a strawberry. The exact cause of strawberry birthmarks is not entirely understood, but they are believed to be related to the following factors:


1. Genetics: There may be a genetic component involved, as they are more common in families with a history of birthmarks.

2. Abnormal blood vessel formation: During fetal development, an overgrowth of blood vessels in the skin can lead to the formation of a strawberry birthmark.

3. Hormonal influences: Some studies suggest that maternal hormones during pregnancy might play a role in the development of these birthmarks.

4. Environmental factors: While less likely, some environmental factors during pregnancy may also contribute to their formation.

It's important to note that most strawberry birthmarks are harmless and often fade away on their own over time. However, in some cases, they can cause complications, such as bleeding or infection, and may require medical treatment.

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Types of hemangiomas and birthmarks include: Strawberry hemangiomas (also called strawberry mark, nevus vascularis, capillary hemangioma, hemangioma simplex) may appear anywhere on the body, but are most common on the face, scalp, back, or chest. They consist of small, closely packed blood vessels.read more >>