Skin lesion aspiration

Skin lesion aspiration is the withdrawal of fluid from a skin lesion (sore).

Why is the Test Performed?

This test is used to help determine the cause of a fluid-filled skin lesion. It can be used to diagnose skin infections.

How is the Test Performed?

A needle is inserted into a skin lesion or skin abscess, which may contain fluid or pus. The fluid may be examined under the microscope or placed in a special laboratory dish (called a culture medium), where it will be watched for the growth of microorganisms.

Preparation for the Test

There is no special preparation for this test.

How will the Test Feel?

If the abscess is deep, the health care provider may inject a numbing medicine (anesthetic) into the skin before inserting the needle.

You may feel a pricking sensation as the needle enters the skin.

In many cases, the removal of fluid will decrease the pressure within the irritates skin sore, and relieve your pain.

Skin lesion aspiration Risks

There is a slight risk of bleeding, mild pain, or infection.

What Abnormal Results Mean

Abnormal results may be a sign of a bacterial or fungal skin infection.

Skin lesion aspiration

Review Date: 10/10/2010
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

_{Do not use this information for medical emergencies - Call 911. This information should not be used for the diagnosis or treatment of any medical condition. A licensed medical practitioner should always be consulted for diagnosis and treatment of any and all medical conditions. Links to other websites do not constitute endorsements and are provided for information only. Any duplication or distribution of this information is strictly prohibited.
Copyright 2011 A.D.A.M., Inc.}