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 ...
People with hidradenitis suppurativa sometimes receive misdiagnosis for other conditions, including folliculitis and acne. A dermatologist can make an accurate diagnosis. Hidradenitis suppurativa (HS) ...
Medically reviewed by Susan Bard, MD Key Takeaways A pilonidal cyst is a painful lump located at the base of the spine at the top of the buttocks.Symptoms can include a painful lump, discharge, and ...