What is the technical term for a birthmark?

The technical term for a birthmark is "naevus." A naevus refers specifically to a common type of skin lesion that is present at birth or appears in early childhood. These marks can vary in color, size, and type, and they result from a collection of pigment cells or blood vessels in the skin. The term naevus encompasses a variety of skin marks, including common moles and larger pigmented lesions.

In the context of dermatology, a birthmark is classified as a type of naevus because it involves changes to the skin that can be categorized under this specific terminology. This label helps healthcare professionals assess and describe skin conditions accurately. Understanding this terminology is crucial for practitioners in fields related to skin health, as it allows for precise communication and effective treatment planning.