Percussion is a method of tapping body parts with fingers, hands, or small instruments as part of a physical examination. It is done to determine:
- The size, consistency, and borders of body organs
- The presence or absence of fluid in body areas
Percussion of a body part produces a sound, like playing a drum. The sound is a sign of the type of tissue within the body part or organ.
- Lungs sound hollow on percussion because they are filled with air.
- Bones, joints, and solid organs such as the liver sound solid.
- The abdomen sounds like a hollow organ filled with air, fluid, or solids.
Simel DL. Approach to the patient: history and physical examination. In: Goldman L, Schafer AI, eds. Goldman’s Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 6.
- 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.