A typical symptom of an umbilical hernia is a palpable bulge around the navel. It may contain the peritoneum and / or displaced organs of the abdominal cavity (most often the intestines). Gradually, the hernia grows - from a few millimeters lesion to a hernia the size of a reticulated ball. A hernia may be accompanied by abdominal pain around the navel, which is aggravated by coughing, sneezing or passing stools. Ailments can also be caused by applying pressure to the hernia with the hand in order to discharge its contents into the abdominal cavity.