116 . SWINE DISEASES 



Predisposing causes mentioned in catarrhal cystitis are 

 also operative in purulent cystitis. The exciting cause is 

 most frequently the Bacillus coli communis, although 

 any of the pyogenic cocci may produce it, or even the 

 Bacillus pyocyaneus being responsible for an occasional 

 case of cystitis. 



Lesions. Hyperemia, tumefaction of the mucosa, 

 accumulation of tenacious mucus upon the mucosa, and 

 the production of pus in quantities characterize purulent 

 cystitis. The surface mucosa is eroded and becomes a 

 granulating surface. 



Symptoms. Frequent urination and the voiding of 

 small quantities of urine admixed with pus typifies 

 purulent cystitis. 



Treatment. Remove the cause, and cleanse the 

 bladder of females with weak antiseptics. The males 

 should be treated by internal medication, with urinary 

 antiseptics and sedatives. 



Tumors 



Very few cases of the occurrence of tumors have been 

 observed in the bladder of swine. Papillomata have 

 been reported in a few cases. 



URETHRA 



The urethra may be imperforate, particularly in the 

 male. Such cases are rarely observed, and those affected 

 die soon after birth. The condition is easily remedied, 

 providing the imperforation is near the outlet, by making 

 a crucial incision or by puncture with a small trocar. 



Injury of the urethra in males may be inflicted by 

 contact with barbed wire or other sharp objects, and the 

 female urethra may be injured by forceps used during 

 parturition. These injuries are not serious, though 

 occasionally they may result in permanent fistulas. 



Stricture 



Stricture of the urethra may follow injuries or inflam- 

 mation. In male swine catheterization is not prac- 



