Diseases of the Urinary Organs. 127 
Imperforate urethra, or prepuce, requires immediate 
opening. 
Retention from paralysis necessitates the use of the cathe- 
ter, which should be repeated from time to time ; but it is 
advisable not to withdraw the whole contents at first, other- 
wise collapse without contraction is likely to ensue ; asmall 
quantity of urine left in is more likely to stimulate the organ, 
and by its warmth aid in restoring it to a natural condition. 
Strychnine or nux vomica is in such cases, exceedingly 
useful, 
When the retention takes place from disease of the penis, 
other than urethritis, as warty growths, an operation for the 
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. Séon, 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. Séon, after having tried in 
vain to abate the irritation, endeavoured 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. Séon could jnot 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 dis- 
tension of the bladder, owing to the retention of urine ; or 
* Prat. Med, Vet., Fev, 1828. 
