Umbilical hernias are defects/openings in the wall of the abdomen, located at the umbilicus (naval), that allow protrusion of abdominal contents (usually fat). These hernias are usually congenital (present at birth) and most are thought to be inherited. Surgical repair is necessary for aesthetics and medical reasons. Large hernias can allow intestines to enter, causing possible intestinal strangulation or obstruction. Small umbilical hernias may be difficult to visualize and require some abdominal pressure to protrude. It is recommended to select against this trait for breeding animals.

Inguinal hernias are protrusions of tissue (usually fat) through an abnormally large inguinal canal (a small opening in the abdominal wall in the groin region through which blood vessels and nerves normally pass). In females, they cause a round or tubular swelling in the groin. In males, they can also cause a round swelling, but usually it is a tubular swelling that extends into the scrotum. They may require some pressure on the abdomen to visualize. Inguinal hernias are usually congenital (present at birth) and inherited. Surgical repair is necessary to prevent intestines or other abdominal contents from entering the defect. It is recommended to select against this trait for breeding animals.