The Visual Guide to
Porcine Reproduction
Abortion: Undetermined Cause
![Autolysing Placenta.](images/po00229.jpg)
Autolysing Placenta.
The fetal membranes are degenerating. A pink 18-20 day embryo is present in the center. Cause unknown.
Evans LE (2009)
![Endometrial Debris.](images/po00231.jpg)
Endometrial Debris.
The endometrium, during early pregnancy, has been exposed. There is evidence of endometrial debris at the site of embryo resorption.
Evans LE (2009)
![Corpora Lutea after Abortion.](images/po00432.jpg)
Corpora Lutea after Abortion.
Postmortem specimen. Prominent corpora lutea remained after abortion in this sow.
Smith MC (2011)