An umbilical hernia is an opening in the muscle wall where the umbilicus (belly button) is located. The hernia allows the abdominal contents to pass through the opening.
Umbilical hernias may be complicated or uncomplicated. A complicated hernia is one in which contents of the abdominal cavity, such as a loop of intestine, have passed through the opening and become entrapped.
An uncomplicated umbilical hernia is associated with a soft swelling in the umbilical area. This swelling may be variable in size and may come and go. Otherwise, the dog will appear health.
Symptoms seen with a complicated umbilical hernia may include:
Most umbilical hernias in dogs are probably inherited although trauma can also be a cause. Some breeds of dogs, including Airedales, Pekingese, and basenji are predisposed to umbilical hernias.
Umbilical hernias can usually be diagnosed by finding the swelling caused by the hernia on a physical examination. However, sometimes contrast radiographs (x-rays) or an abdominal ultrasound are needed to determine which abdominal contents, if any, are entrapped.
Treatment of an umbilical hernia involves surgical correction of the opening and replacement of abdominal contents if necessary. Some umbilical hernias will, however, close spontaneously, usually by 6 months of age.
Small umbilical hernias may not need surgical correction but larger hernias should be repaired to remove the risk of complications.
Because many umbilical hernias are hereditary, pets with these hernias should not be bred.
The spot in the wall of the abdomen in which the umbilical cord connects with the fetus; may also be referred to as the navel.
The condition of having a part of a body part protruding through the tissue that would normally cover it
The space in the abdomen that holds the major digestive organs in an animal. Normally referred to as the area between the diaphragm and the pelvis. Also referred to as the peritoneal cavity.