Fig. 42. 



DISEASES OF THE URINARY AND 

 SEXUAL APPARATUS. 



EXAMINATION OP THE URINARY APPARATUS. 



This comprises the examination of the prepuce, urethra, prostate 

 bladder, and especially the urine. 



Examination of the Prepuce and Urethra. 



If a glossy or purulent discharge comes from the prepuce, it in 

 dicates a catarrhal condition of the part (catarrh of the foreski] 

 or gonorrhoea of the prepuce). If the discharg 

 is purulent, bloody, and has a fetid odor, w- 

 will find wounds or ulceration on the prepuc 

 or the glans. Catarrhal affections (urethral 

 gonorrhceal) of the urethra are very rare in th 

 dog. They are recognized by a discharge o 

 purulent mucus from the urethra, by difficult; 

 in urination, and the animal shows great paii 

 on catheterization. In cases where there i 

 great difficulty in passing urine, or where i 

 is retained entirely, it becomes necessary to pas 

 the catheter or sound. When this retention o 

 urine occurs it is generally due to the presenc 

 of a stone in the bladder, a collection of stone 

 in the urethra, or swelling of the prostate. 



Passing the catheter in the liog : It is best to use a 

 ordinary rubber catheter in the male dog (about 2 t 

 5 mm. in diameter and the ordinary length). Th 

 subject is laid on the left side or back and held i 

 that position by an assistant. The prepuce is shove 

 back behind the swelling of the glans and held firml 

 with the left hand (see Fig. 43). Now grasp the catl 

 eter with the right, and, of course, first see that it hs 

 been well lubricated with some oil or cosmoline and that it contains th 

 wire-stylet, and introduce it into the urethra ; if it is pushed forward u 

 the canal and meets with an obstruction at the posterior end of the boE 

 of the penis, it is due to a flexure of the canal and also to the fact thi 

 (152) 



Catheters : a, male 

 catheter ; b, female 

 catheter. 



