Skip to main content

Health Encyclopedia

Search the Health Encyclopedia

Peritonsillar abscess

Definition

Peritonsillar abscess is a collection of infected material in the area around the tonsils.

Alternative Names

Quinsy; Abscess - peritonsillar; Tonsillitis - abscess

Causes

Peritonsillar abscess is a complication of tonsillitis. It is most often caused by a type of bacteria called group A beta-hemolytic streptococcus.

Peritonsillar abscess most often occurs in older children, adolescents, and young adults. The condition is rare now that antibiotics are used to treat tonsillitis.

Symptoms

One or both tonsils become infected. The infection most often spreads to behind the tonsil. It can then spread down into the neck and chest. Swollen tissues can block the airway. This is a life-threatening medical emergency.

The abscess can break open (rupture) into the throat. The content of the abscess can travel into the lungs and cause pneumonia.

Symptoms of peritonsillar abscess include:

  • Fever and chills
  • Severe throat pain that is usually on one side
  • Ear pain on the side of the abscess
  • Difficulty opening the mouth, and pain with opening the mouth
  • Swallowing problems
  • Drooling or inability to swallow saliva
  • Facial or neck swelling
  • Fever
  • Headache
  • Muffled voice
  • Tender glands of the jaw and throat

Exams and Tests

An exam of the throat often shows swelling on one side and on the roof of the mouth.

The uvula in the back of the throat may be shifted away from the swelling. The neck and throat may be red and swollen on one or both sides.

The following tests may be done:

Treatment

The infection can be treated with antibiotics if it is caught early. If an abscess has developed, it will need to be drained with a needle or by cutting it open. You will be given pain medicine before this is done.

If the infection is very severe, the tonsils will be removed at the same time the abscess is drained, but this is rare. In this case, you will have general anesthesia so you will be asleep and pain-free. 

Outlook (Prognosis)

Peritonsillar abscess goes away with treatment in most cases. The infection may return in the future.

Possible Complications

Complications may include:

When to Contact a Medical Professional

Call your health care provider right away if you have had tonsillitis and you develop symptoms of peritonsillar abscess.

Call your provider if you have:

  • Breathing problems
  • Trouble swallowing
  • Pain in the chest
  • Persistent fever
  • Symptoms that get worse

Prevention

Quick treatment of tonsillitis, especially if it is caused by bacteria, may help prevent this condition.

References

Melio FR, Berge LR. Upper respiratory tract infections. In: Marx JA, Hockberger RS, Walls RM, et al, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 75.

Meyer A. Pediatric infectious disease. In: Flint PW, Haughey BH, Lund V, et al, eds. Cummings Otolaryngology: Head and Neck Surgery. 6th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 197.

Pappas DE, Hendley JO. Retropharyngeal abscess, lateral pharyngeal (parapharyngeal) abscess, and peritonsillar cellulitis/abscess. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 382.

Review Date:8/17/2016
Reviewed By:Josef Shargorodsky, MD, MPH, Johns Hopkins University School of Medicine, Baltimore, MD. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997-A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

adam.com

The Agency for Health Care Administration (Agency) and this website do not claim the information on, or referred to by, this site is error free. This site may include links to websites of other government agencies or private groups. Our Agency and this website do not control such sites and are not responsible for their content. Reference to or links to any other group, product, service, or information does not mean our Agency or this website approves of that group, product, service, or information.

Additionally, while health information provided through this website may be a valuable resource for the public, it is not designed to offer medical advice. Talk with your doctor about medical care questions you may have.

Health
Outcome Data

No data available for this condition/procedure.

Health Encyclopedia

More Features

We Appreciate Your Feedback!
1. Did you find this information useful?
         Yes
         No
2. Would you recommend this website to family and friends?
         Yes
         No