When does uroabdomen usually present in foals?

• A. First week of life
• B. At birth
• C. Second week
• D. Three months

Answer: (A)

Uroabdomen in foals most often shows up during the first week of life. This neonatal period is when bladder rupture is most likely to occur, typically after birth trauma or strain on the bladder as the foal begins to urinate and its urinary tract stabilizes. Clinically, affected foals develop progressive abdominal distension, depression, poor nursing, and signs that resemble colic, with little or no urine production.

A key diagnostic clue is the peritoneal fluid analysis: the creatinine level in the fluid is markedly higher than in the blood, giving a peritoneal-to-plasma creatinine ratio that supports urine leakage into the abdomen. This timing—early in life—is characteristic, which is why the first week is the correct window.

Choices describing presentation at birth, in the second week, or at three months don’t fit the typical neonatal pattern of bladder rupture and urine leakage into the peritoneal cavity.