Skin tags, formally known as acrochordons, are small pieces of flesh that protrude from your skin.
You’ll know it’s different from a wart or mole because of its pedestal base. Warts are flat on top and go deeper into the skin, but a little ball of skin dangling from the surface is a skin tag.
What are the causes of skin tags, how are they formed and can you prevent them?
Leavitt, J., Klein, I., Kendricks, F., Gavaler, J., & VanThiel, D. H. (1983). Skin tags: a cutaneous marker for colonic polyps. Annals of internal medicine, 98(6), 928-930. doi: 10.7326/0003-4819-98-6-928 pmid: 6859706