What is a skin lesion?
A lesion is the medical term for a part of the skin that has an irregular appearance compared to the healthy skin around it. A lesion is typically made up of cells, caused by malformations of the structure of the skin.
On the surface of your skin, a lesion can look like a spot, bump, or growth, can be flat or raised, can have pigment or be clear and can appear anywhere on the face and body. While the lesion appears on the surface of your skin, most cells of a lesion extend underneath the surface into the deeper layers of your skin (the dermis) and can reside at unknown depths. Many factors, including the natural aging process, can cause different types of lesions.