In medicine, excavation has two meanings:
- the act of hollowing out
- the space hollowed out, or a natural cavity or pouch
Examples of the latter include:
- Rectouterine pouch or excavation, between the uterus and the rectum
- Rectovesical excavation, between the rectum and the male bladder
- Vesicouterine excavation, between the bladder and the uterus in a female