Cysts (fluid-filled tissue pockets), infections, and swollen lymph nodes commonly cause armpit lumps. Finding a lump in your armpit can be worrisome, especially if it hurts or appears unexpectedly.

People with underarm hidradenitis suppurativa often develop armpit abscesses, painful lumps under the skin that are filled with pus. Usually caused by a bacterial infection, they can appear red and ...

Hidradenitis suppurative occurs in areas with hair follicles where skin rubs together, so the armpits are frequently affected. Hidradenitis suppurative (HS) is a chronic condition that causes painful ...

In Dr. Pimple Popper's new Instagram video, she helps a patient with a cyst hiding out in the armpit. The contents of the cyst are slick, buttery, and so satisfying to watch with a piece of "garlic ...

Right-sided pain under the armpit may be due to muscle strain, infections, or skin conditions. Sometimes, armpit pain may indicate a more serious issue, such as cancer or a heart issue. The armpit ...

The video begins with Dr. Pimple Popper surveying the cyst. "It's ready," the doctor says. "It's looking at us right away." Her patient is more than ready, too. She tells Dr. Pimple Popper she has ...

Dr. Pimple Popper, a.k.a. dermatologist Sandra Lee, MD, has popped big cysts and little cysts, armpit cysts and eyeball cysts. But TBH, she seems pretty damn fond of the petite superficial chest cyst ...