What is melanoma and what does it look like?

Melanoma is a type of skin cancer that develops from the pigment-producing cells known as melanocytes. It is one of the most aggressive forms of skin cancer and can spread to other parts of the body if not treated early. Melanoma can appear in various forms, but it often starts as a new, unusual skin growth or it can develop from an existing mole.

The appearance of melanoma can vary, but there are some common characteristics that health professionals use to identify it, known as the ABCDE rule:

- Asymmetry: One half of the mole or growth does not match the other half.
- Border: The edges are irregular, ragged, notched, or blurred.
- Color: The color is not uniform and may include shades of black, brown, or tan, sometimes with patches of white, red, or blue.
- Diameter: Melanomas are usually larger than 6 millimeters in diameter (about the size of a pencil eraser), but they can be smaller when first developing.
- Evolution: The mole or spot is changing in size, shape, or color.

It's important to note that not all melanomas will exhibit all these characteristics, and some may have additional features. If you notice any changes in your skin, especially any new growths or changes to existing moles, it's important to consult with a healthcare professional for an evaluation.

Melanoma is a type of cancer that begins in melanocytes (cells that make the pigment melanin). ... Melanoma can also start in the eye, the intestines, or other areas of the body with pigmented tissues. Often the first sign of melanoma is a change in the shape, color, size, or feel of an existing mole.