prolapse

https://doi.org/10.1351/goldbook.11140
Falling or slipping out of place of an organ or other body part.
Note: Uterine prolapse occurs when the ligaments holding the uterus weaken and the uterus slips down into, or even protrudes from, the vagina.
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 797 [Terms] [Paper]