Background: A 34-year-old, captive-born, vasectomized male chimpanzee (Pan troglodytes) presented with lethargy and scrotal swelling.
Methods: Urethral obstruction was diagnosed via urethroscopy.
Results: Removal of the grass stem foreign body resolved the obstruction. Scrotal and preputial ulceration developed from urine scald, which was managed with surgical debridement and antibiotics.
Conclusions: After 7 weeks, the animal was reintroduced to its troup and has been healthy for 11 months.