Actinomycosis is a bacterial infection that results in collections of pus in the body. This condition can be treated, so contact your doctor if you think you may have actinomycosis.
Actinomycosis is most often caused by infection by the bacterium, Actinomyces israelii. This is normally present in the mouth and, sometimes, in the intestines. The jaw is most commonly involved, with lung and abdominal infections being less common. Very rarely, women may develop abscesses in the reproductive organs or bladder.
Risk factors include:
Symptoms may include:
If you have any of these symptoms, see your doctor.
Your doctor will ask about your symptoms and medical history. A physical exam will be done. Tests may include:
Talk with your doctor about the best treatment plan for you. Treatment options include:
High doses of antibiotics are used to treat actinomycosis. The antibiotics will need to be taken for 6-12 months.
American Academy of Family Physicians
American Dental Association
Canadian Dental Association
Actinomycosis. DynaMed website. Available at: https://dynamed.ebscohost.com/about/about-us. Updated October 20, 2011. Accessed August 6, 2013.
Hall V. Actinomyces—gathering evidence of human colonization and infection. Anaerobe. 2008;14(1):1-7.
Naik NH, Russo TA. Bisphosphonate-related osteonecrosis of the jaw: the role of actinomyces. Clin Infect Dis. 2009;49(11):1729-1732.
Sullivan DC, Chapman SW. Bacteria that masquerade as fungi: actinomycosis/nocardia. Proc Am Thorac Soc. 2010;7(3):216-221.
Last reviewed August 2013 by Igor Puzanov, MD; Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.