I04 VETERINARY OBSTETRICS. 



Inversion, or E version, of the Uterus. 



(Procidentia Uleri.) 



This signifies the protrusion of the uterine mass; 

 beyond the outside of the vulva. The size and appear- 

 ance will depend upon the length of time the organ, 

 has been in that situation. 



The cause is not always evident. It may be 

 seen after a healthy case of labor, or an extremely 

 difficult one. It is of much more frequent occur- 

 rence in the Cow than in the Mare. Sometimes, 

 it is due to lack of tone of the muscular system,, 

 the uterus failing to contract normally after parturi- 

 tion. It is sometimes observed in animals that have 

 calved immediately after coming off a railway journey, 

 and is then believed to be due to excitement or 

 injury. Occasionally it is caused by retention of 

 of the foetal membranes. If the inversion be complete, 

 the mass may be seen hanging as low down as the- 

 hocks. The color may vary from a bright, healthy red, 

 to a dark brown, nearly black, depending entirely upon, 

 the length of exposure, and the strangulation of the. 

 vessels. 



If the animal has been lying down for any length 

 of time, the most dependent part will have the greatest; 

 amount of discoloration. 



The treatment will depend altogether on the length, 

 of time the organ has been exposed. Ascertain exactly 

 when it was expelled, and what treatment, if any, has 

 been adopted in the interval, and then decide whether 

 it is advisable to attempt to return it or not. 



If the mass be dark, cold to the feel, and a number 



