Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Ear Infection Health Center

Font Size

Tympanocentesis for Ear Infections

Tympanocentesis is the removal of fluid from behind the eardrum. The doctor uses a special needle with a tube attached to collect the sample of fluid. A culture and sensitivity test is usually done on the sample of fluid.

Before the test, your child may get medicine to help him or her relax. Or a doctor or nurse may apply medicine directly to the eardrum to numb the area. If there is a lot of earwax, it is removed from the ear before the test begins.

The child is held very still while the fluid is removed. You may be asked to help with holding your child still.

In most cases, the eardrum heals within 3 to 5 days after the procedure.

Why It Is Done

This procedure is not often done. It is sometimes done:

  • When a child has severe earache, fever, and signs that an ear infection is not getting better with treatment.
  • When there are signs that a child has serious complications from an ear infection.
  • When an ear infection is suspected in a newborn or in a child with an impaired immune system, or when a person is suspected of having an unusual organism causing the ear infection.
  • As a treatment for a child with severe ear pain. Removal of fluid from behind the eardrum relieves pressure in the ear, easing pain. This may work better than medicines for ear pain.


In most cases, doing a culture and sensitivity test on fluid collected by tympanocentesis can identify the bacteria causing the infection. This helps the doctor prescribe an antibiotic that is more likely to work. Sometimes no bacteria are found in the fluid.

What To Think About

The child has to stay very still during the procedure.

Ask your doctor if your child needs to take extra care to keep water from getting in the ears when bathing or swimming. Your child may need to wear earplugs. Check with your doctor to find out what he or she recommends.

Tympanocentesis does not prevent repeated ear infections (recurrent otitis media).

Complete the medical test information form (PDF)(What is a PDF document?) to help you prepare for this test.

Related Information

ByHealthwise Staff
Primary Medical ReviewerSusan C. Kim, MD - Pediatrics
Specialist Medical ReviewerCharles M. Myer, III, MD - Otolaryngology

Current as ofNovember 14, 2014

WebMD Medical Reference from Healthwise

Last Updated: November 14, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

Today on WebMD

Ear Infection Slideshow
Earache Cold Ear Infection
Side view of child's ear
Syringes and graph illustration
Ear Infections When To Call A Doctor
woman cleaning ear
Ear Infections Medications
Ear Infections Surgery
24 Kid Illnesses Parents Should Know
Parker Treating Ear Infections
Ear Infections What Happens
Ear Infections Exams And Tests