There is no evidence that removing a skin tag will cause more tags to grow. There is no expectation of causing skin tags to "seed" or spread by removing them. In reality, some people are simply more prone to developing skin tags and may have new growths periodically. Some individuals request periodic removal of tags at annual or even quarterly intervals.
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Make a dermatologist appointment. The majority of skin tags are harmless, but it is best to talk with a dermatologist if you notice that the tag is darker than your skin color, large in size, or unusual in shape. If you remove the tag without consulting a professional you could lose valuable time in the event that it is a sign of a larger problem.
Doctors remove many moles every day, but there is always one recurring theme that dermatologists tell people: Be aware of your body and any moles that have changed over time. This is especially true for moles that are dark or flat. Invariably, people will see doctors and be extremely concerned about raised, lightly colored moles, but they are not concerned about the dark, black melanoma (skin cancer) next to the mole. This is truly important.
Skin tags themselves have a core of fibers and ducts, nerve cells, fat cells and a layer of skin surrounding it. They may have a stalk and generally look like a small piece of hanging skin. Skin tags may have a smooth surface or an irregular surface. They are often raised and either slightly brown or flesh colored. They generally start quite small and flat, like the bump on a pinhead. Sizes vary, and they can grow up to 5 cm in size. (2)
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.