Moles, also known as nevi, are common skin growths caused by clusters of pigment-forming cells called melanocytes. They can appear as small, dark brown spots or flesh-colored bumps on the skin and can vary in color, shape, and size. Here are some key points about moles:
- Appearance: Moles can be smooth, wrinkled, flat, or raised, and they may have hair growing from them. They are usually less than 1/4 inch in diameter, about the size of a pencil eraser.
- Types: There are different types of moles, including congenital moles (present at birth), common moles (acquired after birth), and atypical moles (dysplastic nevi) that often have an odd shape, are larger than a pencil eraser, and show more than one color.
- Harmlessness: Most moles are harmless and do not cause pain, itching, bleeding, or inflammation. They can last as long as 50 years and may change in appearance or fade over time.
- Risk of Cancer: While most moles are benign, some types can develop into skin cancer. Overexposure to the sun, especially in childhood, can increase the number of moles, and people with a lot of normal moles can have a higher risk of developing melanoma.
It is important to monitor moles for any changes in color, height, size, or shape, and to have them evaluated by a dermatologist if there are any concerns. Regular skin examinations and limiting UV exposure can help in the early detection and prevention of potential issues related to moles.
