Acrochordons can appear as early as the second decade. Typically after age seventy people do not develop new acrochordons. They tend to grow in areas where there are skin folds, such as the underarms, neck, eyelids, and groin. They are skin colored or brown ovoid growths attached to a fleshy stalk. Usually they are small, between 2-5 mm, but can grow to be several centimeters. Acrochordons are not painful but can be bothersome. People frequently complain skin tags get caught on clothing or jewelry.
As far as other DIY methods for skin tag removal at home, such as applying apple cider vinegar, coconut oil, tea tree oil, etc., Geraghty notes that there's no compelling evidence to show that those therapies are effective. "You can't make tissue disappear by putting a little vinegar on it. It just doesn’t work... You really need that to physically be removed."
While they can turn up anywhere, skin tags tend to appear where there is frequent friction, such as the neck, breasts, groin, and underarms. Ultimately, there is no evidence that skin tags will lead to any serious skin condition: They’re mostly an aesthetic annoyance. Regardless, most dermatologists encourage you to have them checked out—and removed, if you want. The only link to danger is from one study from the Indian Journal of Dermatology, which suggested that skin tags may be a sign of underlying heart issues. You could get your heart checked out, but the one research connection shouldn’t concern anyone too much.