Melanoma is a type of skin cancer that starts in the melanocytes, which are special cells in your skin that make color.
Imagine your skin is like a coloring book, the melanocytes are the crayons. When everything is normal, they color your skin evenly. But sometimes, those crayons can get out of control and start drawing too much or in strange places, making dark spots or bumps on your skin.
What makes melanoma happen?
Sometimes, melanocytes change and grow too fast, like when you leave a crayon in the sun for too long and it gets all smudged and messy. These changed cells can form a spot, bump, or even spread to other parts of your body if not caught early.
How do we find melanoma?
Doctors look at your skin carefully, like checking for smudges on a coloring book. If they see something strange, they might take a little piece to check under the microscope, just like looking closely at a drawing to see if it’s still neat or if it's gotten too wild.
Sometimes melanoma can be found early and is easy to treat, like fixing a small smudge before it turns into a big mess.
Examples
- Someone gets a bad sunburn and later develops a dark spot on their skin.
- A doctor notices an unusual growth on someone's arm during a checkup.
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See also
- How does the human immune system protect against disease?
- How does the human immune system distinguish friend from foe?
- How does the immune system fight off common infections?
- How Does the Immune System Recognize Foreign Bodies?
- How does the immune system protect our bodies from illness?