Crepitation refers to situations where noises are produced by the rubbing of parts one against the other, as in:
- Crepitus, a crunching sensation felt in certain medical problems
- Rales or crackles, abnormal sounds heard over the lungs with a stethoscope
- A mechanism of sound production in grasshoppers during flight. Also called "wing snapping".
Causes of Crepitations: 1.Pulmonary oedema*** 2.Resolving pneumonia 3.Bronchiactesis 4.Lung abscess 5.Diffuse parenchymal lung disease