NAVLE（北美执业兽医考题）Day 522

A 5-month old kitten presents to you with a rectal prolapse, as shown in the photo. What is the most common cause of rectal prolapse in a kitten?

如图所示，一只5个月大的小猫出现直肠脱垂。 小猫直肠脱垂的最常见原因是什么？