Umbilical hernias are very easy to detect and usually heal without treatment.
Hiatal or diaphragmatic hernias can form when part of the stomach, intestines, or spleen is pushed through a weak spot in the wall of the abdominal cavity. This often occurs during birth, and Symptoms may include difficulty eating, regurgitation of food and vomit, changes in appetite and weight loss, morning sickness, coughing up blood, periods of restlessness followed by unresponsiveness or coma, and death. Hiatal hernias can often be treated with surgery.
Inguinal or perineal hernias occur inside the groin (inguino-femoral) area. This type is more common in male cats and may require surgery to fix.