A cyst and a boil can both look like a bump, though their causes differ. For example: A boil—also known as a furuncle—occurs due to a bacterial infection of a hair follicle and the tissue around it.

Pilonidal sinus—also called a pilonidal cyst—is a skin infection that occurs in or around the crease of your buttocks. This condition happens when hair, skin cells, and dirt clog a hair follicle, ...

What Are The Symptoms of Boils? Where do boils come from and what causes them? A boil starts as a hard, red, painful lump usually about half an inch in size. Over the next few days, you'll notice the ...

Skin cysts, or sebaceous cysts, are slightly hardened, fluid-filled bumps under the skin. When a person feels them, they are moveable. They often affect the face, neck, and torso. The term “sebaceous ...

Ingrown hairs can cause a cyst, which is a fluid-filled lump. Home remedies and medical treatments may help manage an ingrown hair cyst. An ingrown hair occurs when the hair grows downward instead of ...

A 27-year-old man will have a scar on his face for the rest of his life, after what he thought was a pimple turned out to be an infected cyst. In late 2024, Kai Davidson noticed a small lump on the ...

Cysts, abscesses and lipomas all have one common feature: they cause a lump or bump on the skin. All three are very common and I literally remove a hundred or more lipomas and sebaceous cysts a year.