Where do moles come from?

Names of moles

• You probably know moles by a few different names. For example, the term “birthmark” is common. The medical term is nevus.
• In most cases these are nevus cell nevi. This complicated name conceals growths of nevus cells. Much like melanocytes, which make the pigment melanin that makes you tan, these cells can do the same. That's why a birthmark is dark in color.
• There are no moles in babies. Over the years and decades, however, some are usually added. Where some time ago it was still bright skin was seen, then a dark spot can be seen, so that you are probably wondering where it came from.
• Their appearance is quite different. They can be light brown but also almost black, hairy, flat or raised.
• If you have a mole, you usually don't need to worry about skin cancer as long as it doesn't change noticeably. If it changes color, shape, bleeds, or itches, you should see a dermatologist and see where the changes are coming from. But even if moles look noticeable, no skin cancer has to hide behind them. However, they are generously removed for diagnostic purposes.
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Why do you get birthmarks? - Useful information

Many people have dark pigmented spots on their skin. With these birthmarks ...

Where do birthmarks come from?

• If new moles appear, one often asks oneself where they actually come from. The cause is a change in the genetic make-up, which causes the nevus cells to grow.
• The birthmarks develop in a certain cycle that you may have already observed in yourself.
• Moles that are very young grow between the top two layers of the skin, the epidermis and dermis. They are small, have a clear border and are relatively dark.
• If the birthmark continues to grow, it spreads in the layers of the skin. If you run your finger over such a mole, you may notice that it is raised in some places. Often the color is then no longer uniform and it becomes lighter. Such moles often appear during puberty.
• Birthmarks can remain at any stage, but they can also develop further. We don't know where the decision comes from.
• A nevus has reached the final stage when the cells are completely seated in the deep dermis, the second layer of skin. Such a spot is raised; it even forms a hemisphere. In contrast to the beginning of its development, it is now relatively light and often hairy. When these moles appear in prominent places such as the face in young adulthood, they are often removed for aesthetic reasons.