THE FEMALE GENERATIVE ORGANS 289 



aid of forceps. Tumours are often a source of great trouble, 

 and some varieties are contagious and recur very rapidly (see 

 p. 291). 



Prolapsed Vag-ina. 



Frequently, especially during the period of oestrum and after 

 parturition, especially when a bitch is out of condition, the 

 vaginal mucous membrane becomes relaxed, and in some 



Fig. 183. — Prolapse of the Vagina. 



cases will protrude from the vulva for a considerable 

 distance. It is a serious condition in brood-bitches, as it 

 often interferes with mating, and also with the passage of 

 the pups at time of birth. It is particularly noticeable when 

 the animal lies down. To look at, in the first instance, it is 

 like a small, white, shiny rubber or celluloid ball, varying in 

 size from a filbert to an orange, or even, in the larger breeds, 

 to a cocoanut. If neglected, the surface which protrudes 

 from the vulva will become hardened and corrugated or 

 wrinkled in appearance. 



19 



