A boil, also known as a furuncle, is a swollen, pus-filled growth on the skin that occurs when bacteria—even those normally found on your body—infect a group of hair follicles. Boils commonly develop ...

When you experience a breakout on your butt, it may look like pimples. However, these blemishes are often a skin condition other than acne, such as folliculitis, boils, contact dermatitis, or ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...