hepatoma: Postmortem fetal extrusion, also known as “Coffin birth” is the process of a fetus being pushed through the vagina (much like live birth) of a pregnant decomposing corpse. The fetus is forced out the bloating of the body and by pressure of the gases in the abdominal due to decomposition. The fetus is seen below the body above, laying flat on the ground with the umbilical cord still attached.
The skeleton of a near-term fetus found in a Black Death-era Italian grave is evidence of a gruesome natural phenomenon called postmortem fetal extrusion, or coffin birth. (Credit Cesana et al 2017/http://doi.org/10.1537/ase.161011)
Coffin birth, known in academia by the more accurate term postmortem fetal extrusion, is the expulsion of a nonviable fetus through the vaginal opening of the decomposing body of a deceased pregnant woman as a result of the increasing pressure of intra-abdominal gases.