Bumps that appear on the body can be hard for the average person to detect. Is it a pimple? A boil? A mosquito bite? Dr. Amy Espy-Smith, the area medical director for Concentra, an urgent-care clinic ...

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 ...

A boil, also called an abscess, is an infection deep inside the skin that produces redness, pain, swelling, and pus. Boils generally develop when Staphylococcus bacteria invade the body through a ...