Naevi, also known as nevi, is the plural form of the word nevus, which is derived from the Latin term meaning "birthmark" or "mole." It is a medical term used to describe various types of benign (non-cancerous) growths or lesions on the skin. Naevi can appear at any stage of life, with some people being born with them while others develop them later.
These skin conditions are typically characterized by an accumulation of pigmented cells called melanocytes. Naevi can manifest in different forms, such as flat patches of discolored skin, raised bumps, or protruding moles. They can be various shapes, sizes, textures, and colors, ranging from light tan or flesh-colored to dark brown or black.
There are different types of naevi, including congenital melanocytic naevi (present at birth), acquired melanocytic naevi (developed later in life), and special types like dysplastic or atypical naevi, which carry a slightly increased risk of developing into melanoma, a type of skin cancer.
Although most naevi are harmless and purely cosmetic, dermatologists may recommend monitoring any changes in color, shape, size, or texture, as these could be signs of malignancy. It is crucial to distinguish between benign naevus and potentially cancerous growths to ensure the timely detection and treatment of any malignant lesions.
In summary, naevi are benign growths or birthmarks on the skin, typically characterized by an accumulation of melanocytes. While most naevi are harmless, monitoring for any changes and seeking medical advice if necessary is important to differentiate between benign and potentially malignant growths.
