Approach to Ambiguous Genitalia in a Native Calf: A Case Report

Ambiguous genitalia in a calf refers to genitals that are not distinctly male or female, often indicating an obstructive or structural issue in the urinary system.An 8-month-old native calf weighing 80kg was presented with anuria and abdominal swelling at the Large Animal Hospital, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand.Physical examination revealed the absence of external genitalia, abdominal distension, and 8% dehydration, though vital signs were normal.Soft tissue edema extended from the prepubic to the xiphoid region, with fluid seeping from the swollen area.Only an orifice on the lower abdomen was observed.Radiographs confirmed fluid accumulation in the abdominal area.A voiding urinalysis and ultrasonography were performed to locate the bladder.A perineal urethrostomy was then conducted, and a Foley catheter was inserted to dilate the urinary opening before closing the bladder.A Penrose drain was placed to release subcutaneous fluid.Post-operative care included a 7-day course of antibiotics, 5 days of NSAIDs, and stitch removal after 14 days.The patient recovered well, resuming normal feeding and urination through the newly created opening.