If you have itchy armpits ... breasts, groin area, and in other body creases, such as elbows and knees. Prickly heat causes ...

The most common signs of hidradenitis suppurativa are painful, pea-sized lumps under the skin ... and contain sweat glands, like the armpit, groin, genitals, breasts, and buttocks.

"You may get cysts or boils, usually in folded areas of the skin, like the armpits, groin area, or under the breasts," says dermatologist Ife J. Rodney, MD. (Just a heads up: acne inversa is ...