Skin tags are thought to be caused by collagen and blood vessels that bunch together and get caught inside thicker skin. As skin tags more commonly occur in skin creases or fold, it is believed they are mainly caused by skin rubbing against skin. However, no one knows for sure. Skin tags affect all people of any gender. However, some people are at a higher risk for developing skin tags. You may be more likely to develop skin tags if any of the following applies to you:
More than half if not all of the general population has been reported to have skin tags at some time in their lives. Although tags are generally acquired (not present at birth) and may occur in anyone, more often they arise in adulthood. They are much more common in middle age, and they tend to increase in prevalence up to age 60. Children and toddlers may also develop skin tags, particularly in the underarm and neck areas. Skin tags are more common in overweight people.
And speaking of cancer, it’s generally not something you need to worry about with regular old skin tags. Dr. Farber says that, “If anything changes quickly, is unusually painful, or concerns you, it’s worth getting it examined to confirm it’s a benign skin tag …. Skin tags tend to grow very slowly. Any growth that changes quickly is a reason to get examined by a dermatologist.”
Treat with apple cider vinegar. Get a cotton ball and soak it in apple cider vinegar until it is totally saturated. Place the cotton ball on your skin tag and hold for a few minutes. You can move the ball in a circular motion on the skin to increase absorption if you like. Repeat this process three times per day until your skin tag falls off. This method is usually quite effective. Depending on your skin the vinegar may not be as effective so you can try using apple cider by itself. [16]
Your dermatologist may become concerned if one of your moles has changed shape or color, as this may be an indicator of skin cancer. Most moles are less than a ¼-inch in size, so any mole that is larger should be checked by your doctor. Identifying and treating skin cancers early helps avoid spreading of the cancerous cells to other parts of the body. Uncommon moles, also called dysplastic nevi, may:
Except for the cosmetic appearance, skin tags generally cause no physical pain or discomfort. These tiny skin growths generally cause symptoms when they are repeatedly irritated (for example, by the collar or in the groin). Cosmetic reasons are the most common reason for skin tag removal. The following symptoms and signs may necessitate skin tag removal:
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.
There are a few methods that can be used in removing a mole. Factors such as depth, size and location will help determine the most effective removal method. Moles that are flush to the skin may be able to be removed using a simple shaving technique or a laser treatment. For deep-seated moles, excision is the only way to remove it safely and effectively. During this process, the doctor will cut away the mole along with a small border of skin that surrounds it. Sutures are placed deep within the excision so that a clean, thin scar will be all that remains. 
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Most doctors recommend removal of skin tags only when they are irritated or a source of discomfort, or if they constitute a cosmetic problem. Skin tags can be easily removed in the doctor's office by tying or cutting them after injecting a small amount of a local anesthetic. Freezing, a technique sometimes used to remove warts or other benign lesions of the skin, is also sometimes performed for the removal of skin tags.
Some doctors said skin tags wouldn’t grow. Some told me they would keep growing. Most of them said they would increase in frequency as a person ages, and sure enough, what did I find over my eyelid the other day — a tiny little skin tag, just where the lid rubs against my brow. For cosmetic reasons, I’d consider getting that one removed, though the thought of liquid nitrogen on that thin skin makes me shudder, as do the aesthetics of a giant Band-Aid on my face for days.
Rub on aloe vera. You can either snip off a piece of an aloe vera plant or squeeze it to get the gel or you can purchase a bottle of aloe vera gel at a store. Get a cotton swab and dip it in the gel. Wipe it on your tag as often as you like. This method relies on the natural curative properties of aloe vera and its effectiveness is hit or miss.[12]
Factors associated with pregnancy are setup for skin tags. The body is in a general state of growth during pregnancy and all kinds of skin lesions grow during this time. That state of growth, coupled with a heavier-than-normal body weight and possible gestational diabetes (which may be correlated to skin tags), and increased friction in areas of rubbing, like the inner thighs or underarms, can all lead to skin tags during pregnancy.
The causes of skin tags are not entirely clear but their presence in skin fold areas suggests that friction or frequent irritation is a potential cause. The condition appears to have a genetic component (there is a tendency for skin tags to occur in families) but other potential causes include hormonal imbalances. For example, skin tags are associated with agromegaly, the growth hormone disorder.

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Insulin resistance, which may lead to type 2 diabetes and prediabetes, may also play a role in the development of skin tags. People with insulin resistance don’t absorb glucose effectively from the bloodstream. According to a 2010 study, the presence of multiple skin tags was associated with insulin resistance, a high body mass index, and high triglycerides.
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