124 THK MANAGEMENT AND DISEASES OF THE DOG. 



When the retention takes place from disease of the penis, 

 other than urethritis, as warty growths, an operation for tlie 

 removal of the impediment is necessary. (See " Warts on 

 the Penis.") 



Youatt quotes a singular case of retention of urine, caused 

 by the presence of a worm in the urethra. 



M. Seon, veterinary surgeon of the Lancers of the Body- 

 guard, was requested to examine a dog who strained in vain 

 to void his urine, often uttering dreadful cries, and then 

 eagerly licking his penis. M. S<fon, after having tried in vain 

 to abate the irritation, endeavored to pass an elastic bougie. 

 He perceived a conical body, half an inch long, protruding 

 from the urethra with each effort of the dog to void his urine, 

 and immediately.afterwards returning into the urethra. He 

 crushed it with a pair of forceps, and drew it out. It proved 

 to be a worm resembling a strongylus, four and a half inches 

 long. It was living, and moving about. M. S^on could not 

 ascertain its species. The worm being extracted, the urine 

 flowed, and the dog soon recovered.* 



PARALYSIS OF THE BLADDER. 



This cystic condition may occur from protracted distension 

 of the bladder, owing to the retention of urine ; or from local 

 or general paralysis, the result of spinal injury, or other and 

 debilitating diseases. ■ 



Many dogs, from habits of cleanliness, will not urinate 

 except out of doors, an illustration of which has already been 

 given in the section on " Cystitis." The muscular coat of the 

 bladder being thus overstretched, and the strain on it pro- 

 longed, it becomes paralyzed. So that when liberty is ac- 



* Prat. Mid. VH., Fev. 1828. 



