Medically reviewed by Brian T. Luong, DMD Key Takeaways A gum boil is a painful, swollen bump filled with pus on your gums.Poor dental hygiene and injuries to the gums can lead to gum boils.You need ...

An abscess occurs when an infection causes a pocket of pus to develop. Abscesses can develop on the skin, in the mouth, or inside the body. Bacterial infections typically cause abscesses. Pus develops ...

A skin abscess or boil is a bump on or below the skin’s surface. It may look like a pimple but larger and deeper under the skin. Abscesses usually contain pus or clear fluid and can appear anywhere on ...