Susan Besser, MD, a family medicine specialist with Mercy Medical Center in Baltimore, says that if skin tags “get large, change color, or become infected or ulcerated, you need to see your doctor. In those cases, it may not be a simple skin tag and further evaluation is needed.” By and large, Todd Minars, MD, of MINARS Dermatology in Hollywood, Florida, states, “Skin tags are harmless. If they do not bother you, then there is no need to treat them.”
Skin tags have been linked to diabetes. "We know that diabetics are more prone to them. More research is needed to know exactly why that is scientifically, but there’s some correlation that we observed with diabetes," says Geraghty. Though doctors don't fully understand why, the body's resistance to insulin might have something to do with it. So, if you have diabetes, you may be at an increased risk of developing skin tags.
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.
Moles can be removed a number of ways, most commonly by numbing the area and then shaving them off or cutting them out and closing the area with stiches. The method of removal is determined by a number of factors including appearance, size, location, and type of mole. For example, if a mole is just bothersome because it is raised, shaving it flat is usually the best approach. Similarly, if a mole is abnormal appearing and small, it also is typically shaved. Conversely, moles that are growing irritated hairs are usually best treated with complete removal and closure with stiches. Moles can grow back after shaving (and occasionally even after removing and closing area with stiches).
Skin tags are usually harmless, so treatment isn’t necessary unless the lesion causes irritation. Although home remedies and over-the-counter products are effective, inexpensive solutions, see a doctor if a skin tag doesn't respond to home treatment, bleeds, or continues to grow. Several procedures can successfully remove a skin tag with minimal pain and scarring.
While skin tags can appear just about anywhere, they're especially common in parts of your body that rub against clothing or skin. Skin tags are most common on the neck, armpits, groin, and eyelids. They also may appear on the chest and back and in skin creases. Women are likely to develop skin tags under the breasts, where the underwire of a bra may rub against the skin.
The best method for mole removal depends on different characteristics of the mole including size, shape, and color. With most moles (pigmented areas) we are either born with them, or they appear over time as we exose our skin to the sun. For flat moles, skin tags, or protruding moles that have been relatively stable since birth (with no rapid growing, shape changing, etc.) treatment with laser or excision can remove them easily. Other moles that have changed in color or contour should be removed for biopsy to determine if they are associated with skin cancer.
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.
Other skin conditions such as warts and moles can resemble skin tags. Since some moles may be cancerous, it’s best to have your skin tags examined by a doctor. Your dermatologist or family doctor will be able to diagnose skin tags. They’ll likely do this through a visual exam. If they have any doubt about the diagnosis, they may also perform a biopsy.