MATERNAL DYSTOKIA. 



95. 



It is generally due to some accident in the later 

 months of pregnancy, through falling or being cast. 

 Some authorities think that the movements of a strong 

 fcetus may bring it about. The condition is often 

 difficult to diagnose. The labor pains may have been 

 present for some time, and the animal apparently very 



Fig. 43. 



Left Uterine Torsion in situ. 



I, Body of the Uterus; 2, Twisted cervix uteri ; 3, Vagina; 4, Left 



Fallopian Ligament. 



uncomfortable, but still there is no appearance of the 

 amniotic sac or fluid. If the abdomen of the patient 

 be examined, it may be larger on one side than the 

 other, the large side being that to which the uterus- 

 has turned. If explored per vagina, the os-uteri is 

 constricted or closed. If the fingers can be passed into 

 the OS, the mucous membrane will be found to have 



