Why do I get flesh-colored moles on my neck or armpits, and how do I get rid of them? Experts explain. | July 23, 2025

Skin tags, medically known as acrochordons or soft fibromas, are small skin growths that usually appear in areas of the body where there are folds, such as the neck, armpits, eyelids, groin, and under the breasts.

Although they are harmless and generally painless, they can be bothersome or unsightly for some people. If you’re wondering why these skin tags appear and how you can safely remove them, here’s everything you need to know, with expert advice.

Why do skin tags appear?

Skin tags are benign skin growths composed of collagen and blood vessels surrounded by a layer of skin. Although their appearance can be influenced by several factors, some of the most common causes include:

1. Friction and Chafing:

One of the main reasons why moles appear in areas like the neck and armpits is constant skin friction, either from clothing rubbing against skin or natural body movement. Repeated friction can trigger a skin reaction that results in the formation of these bumps.

2. Genetic Factors:

Genetics plays an important role in the appearance of moles. If your parents or close relatives have them, you are more likely to develop these skin growths as well.

3. Hormonal Changes:

Hormonal changes, especially during pregnancy or in overweight people with insulin resistance, can increase the likelihood of developing moles. These hormonal changes can stimulate cell growth in the skin, leading to the formation of skin tags.

4. Age:

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