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The information contained on this page is provided as general health information and is not intended to substitute as medical advice and direction from your physician or health care provider. Please direct any questions related to your health care provider. In an emergency, call 9-1-1 or go to the nearest emergency center.


Percussion

Definition

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.

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Percussion

References

Swartz MH. The physical examination. In: Swartz MH, ed. Textbook of Physical Diagnosis. 7th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 4.