The process of percussion typically involves the healthcare provider using their fingers or a percussion hammer to tap on the patient's body. The technique can be classified into two types: direct and indirect percussion. In direct percussion, the provider taps directly on the body surface, while in indirect percussion, they place one hand on the body and tap on it with the fingers of the other hand. The sound produced – whether it is resonant, dull, or tympanic – provides clues about the underlying tissues.
