Perineal hernia

From Felipedia

Perineal hernias are seen frequently enough in dogs, but occasionally can also be found in cats. A cause of constipation, one may often (but not invariably) see distention of the perirectal area due to feces impacting in the hernia. Digit rectal examination should be diagnostic. Care must be taken whenever inserting anything into such th rectum, lest one inadvertently perforate the hernia.

If the urinary bladder or intestines find their way into the hernia, there can be urinary tract obstruction (post renal uremia) or incarcerated obstruction, both of which are emergencies^[1].

References

1. ↑ WSAVA VIN Proceedings, 2005