My husband has a skin tag under his arm for the past 2 years it has swollen up why?

May be irritated.: Sometimes, a common skin tag will swell up when it's irritated by being caught on something. You may have a bit of bleeding into the tag. Skin tags are common, and usually not problematic. They tend to occur in areas where skin rubs against itself: collar lines, under bra lines, etc. Clearly, if it looks very different to you, get your husband checked by his doctor. Lgromkomd.

Let me advise you: Skin tags usually get bigger somatimes to size of grape.However, your doctor may recommend that a skin tag be excised and sent to a pathologist for microscopic diagnosis to rule out other conditions of the skin that can produce lesions similar in appearance to skin tags. Certain types of moles (nevi), benign skin growths (such as seborrheic keratosis), and warts can sometimes resemble skin tags.