An abscess is a well-defined collection of pus that has escaped from blood vessels 
and has been deposited on tissues or in tissue surfaces. This is usually associated 
with swelling and other signs of inflammation. Abscess is also used to refer to an  
opening within solid tissue that is formed by the death of tissue that has transitioned to 
a partly or completely liquid substance after being digested by enzymes. An enzyme is 
a type of protein that helps produce chemical reactions in the body. 
 
Abscesses can be extremely painful, particularly if one is under a tooth and the pressure 
from the pus compresses on a nerve. An example of an abscess is an alveolar abscess,  
which is located in part of the jaw. Another example is a cheesy abscess, which is filled  
with a cheese-like consistency. 
abscess with two separate cavities or chambers. A bursal abscess is the formation or 
discharge of pus within a bursa (fluid-filled sac or sac-like cavity). 
abscess is one that occurs suddenly. Acute abscesses are generally much more painful. 
Chronic abscesses are often also referred to as cold abscesses because they often do  
not present with heat, redness, fever, significant pain, or inflammation. A dry abscess is 
the dry remains of an abscess after the pus is absorbed. 
 
An abscess is caused by an infection (usually via bacteria or 
parasites) or the presence of other foreign substances in the 
body such as a splinter. A parasite is any organism that lives in or 
on another living being, gains an advantage by doing so, but 
causes disadvantage to the being it is living on. The formation of 
an abscess is actually a way the body tries to defend itself 
because it is an attempt to prevent the spread of infection to 
other parts of the body. Abscesses are usually treated with 
surgery, other forms of removal, drainage, and/or medication 
(antibiotics). Abscess comes from the Latin word “abscessus” 
meaning “a going away.”