​A liver abscess is a collection of pus within the liver.  They are most commonly due to a bacterial infection, but can also be caused by fungi or parasites.  In many cases, patients may have underlying biliary disease, a broad term for conditions affecting the liver, pancreas and gall bladder. This can result in development of a liver abscess. 

​Symptoms of a liver abscess may include fever, chills, right upper abdominal pain, diarrhea, loss of appetite and/or weight loss.