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.

An infection in the deep neck space causes a retropharyngeal abscess. The condition can cause fatal airway obstruction, so doctors treat it as a medical emergency. A person’s symptoms can include ...

A tooth abscess is a collection of pus that forms inside a tooth or its surrounding structures. The abscess itself is one of the later stages of tooth decay, and typically occurs before tooth loss.

Medically reviewed by Jennifer Schwartz, MD Key Takeaways Pus forms when the immune system's white blood cells fight an infection.Pus can be different colors and may emit a foul odor if the infection ...

A gum abscess, also called a periodontal abscess, is a painful pocket of pus on the gums that can cause serious complications if untreated. Common causes include bacteria from gum disease and plaque ...

A cyst is a sac or cavity that may be filled with pus, semi-solid material, or air. It doesn’t usually cause pain until it gets large. An abscess is a painful, red infection that’s filled with pus. A ...