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what is melanoma

Melanoma is a serious type of skin cancer that begins in melanocytes, the pigment‑producing cells that give skin its color. It is less common than other skin cancers but more dangerous because it can spread (metastasize) to other parts of the body if not found and treated early.

Quick Scoop: The Basics

Melanocytes make melanin, the pigment that determines how light or dark your skin is. When their DNA is damaged—most often by ultraviolet (UV) radiation from sunlight, sunbeds, or sunlamps—they can start growing out of control and form melanoma.

Melanoma usually appears on the skin, sometimes starting in an existing mole or in normal‑looking skin. It can also rarely develop in places like the eye, under nails, or on palms and soles, even in areas that don’t see the sun.

How It Looks and Where It Appears

Common sites include the trunk (chest and back) in men, legs in women, and the neck and face, especially in people with lighter skin. In darker skin, melanoma is less common overall but more likely to appear on palms, soles, or under the nails.

Doctors describe several main types of melanoma:

  • Superficial spreading melanoma – the most common type, often a dark spot that slowly spreads outward on the skin’s surface.
  • Nodular melanoma – a raised bump that can be dark, pink, or red and tends to grow more quickly and deeply.
  • Lentigo maligna melanoma – usually in older adults on sun‑exposed areas like the face, growing slowly at first.

Why It Matters

Even though melanoma is less common than other skin cancers, it is considered the most dangerous form because of its higher chance of spreading if not caught early. When diagnosed at an early stage and treated promptly, survival rates are high.

If you notice a changing mole, a new unusual spot, or something that looks very different from your other spots, it’s important to get it checked by a healthcare professional as soon as possible. Early evaluation is especially important if a spot is changing in size, shape, or color, or if it bleeds, itches, or looks very different from the rest.

Information gathered from public forums or data available on the internet and portrayed here.