Feline Hernia Study Guide

Overview and Clinical Importance

Hernias in cats represent abnormal protrusions of abdominal contents through defects in the body wall or diaphragm. While relatively uncommon compared to dogs, feline hernias are clinically significant and frequently tested on the NAVLE. Understanding hernia classification, clinical presentation, and surgical management is essential for veterinary practice.

The four main types of hernias in cats are umbilical, inguinal, diaphragmatic (traumatic), and peritoneopericardial diaphragmatic hernia (PPDH). Each type has distinct etiology, clinical features, and management considerations that are high-yield for board examinations.

Hernia Classification Overview

Umbilical Hernia

Definition and Pathophysiology

An umbilical hernia occurs when the umbilical ring fails to close completely after birth, allowing abdominal contents (typically fat, omentum, or intestinal loops) to protrude through the defect. This is the most common type of hernia in kittens and is usually congenital with a suspected hereditary component.