102 CANINE DISTEMPER 
tion that the ulcers of swine fever are very typical of that 
disease. 
The condition may be aggravated by the presence of 
worms, improper feeding, or the administration of quack 
nostrums, many of which are totally contra-indicated— 
particularly severe purgatives and vermifuges. = 
Tenesmus and Rectal Prolapse—Tenesmus or straining 
becomes persistent and painful, in consequence of which, 
FIG. 9.—PROLAPSE OF THE RECTUM. 
not uncommonly, the veterinary surgeon has to contend 
with a grave complication in the prolapse of the rectum. 
Protracted diarrhcea and tenesmus will set up a rapid 
emaciation, and the animal will evince signs of internal 
pain, such as arching of the back, general uneasiness, 
tenderness on pressure of the abdomen—which is tense 
and contracted—and excessive thirst. If, then, we 
observe the passage of pure blood fer anunz, this may be 
evidence either of ulceration or of a probable intussus- 
