Back in the 1980s, there was some speculation that skin tags were more common in people who went on to develop colon polyps or colon cancer. Subsequent research published in the Archives of Internal Medicine and the Journal of Clinical Gastroenterology, however, found no association. That means people with skin tags had no greater chance of developing colon polyps or cancer. The authors concluded skin tags should not be used as a reason for more intensive screening.

Experts don't know the exact cause of skin tags, but they believe that these growths appear when skin rubs against skin. As such, skin tags are often found in armpits, or on the neck and groin.9 In other cases, your skin tag may be confused with a condition known as the Birt-Hogg-Dube (BHD) syndrome, a condition that produces growths on the skin that look exactly likeĀ  skin tags.10

Moles are typically small, dark skin growths that develop from pigment-producing cells in the skin but they can be raised off the skin and very noticeable or they may contain dark hairs. The special cells that contain the pigment melanin are responsible for the brown color. They can be round, oval, flat, or raised. Most moles are brown, but colors can range from pinkish flesh tones to yellow, dark blue, or black.
Skin cancers occur when skin cells undergo malignant transformations and grow into tumors. The most common types of skin cancer, basal cell carcinoma and squamous cell carcinoma, are highly curable when they are diagnosed and treated early. Sun exposure, tanning beds, depressed immune system, radiation exposure, and certain viral infections are risk factors for skin cancer. Skin cancers are treated with surgery or radiation. The prognosis of nonmelanoma skin cancers is generally very good.

The cause of acrochordons is unknown, however there are several theories. Irritation or friction to the skin, as occurs with skin rubbing on skin in body folds, may play a role in their formation. Acrochordons are found more commonly in people who are overweight or have diabetes. This may be due to body habitus (more skin folds), but some people think insulin resistance may somehow contribute to the development of these harmless tumors. A study of 49 patients with acrochordons showed that the human papilloma virus (HPV) was present in a high percentage of growths, suggesting the virus plays a role in development. It is also possible that acrochordons are genetic or simply due to normal aging and loss of elastic tissue. There is a genetic disorder called Birt-Hogg-Dube Syndrome that is characterized by numerous skin tags along with other skin and systemic findings.
What causes vaginal skin tags? Skin tags are common, harmless skin growths. They can appear all over the body, including near the vagina. In this article, we examine the possible causes of vaginal skin tags and what can be done to remove them. We also look at how to tell the difference between skin tags and genital warts, and when to see a doctor. Read now
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