Basic objective of this article is to explain Causes of Umbilical Hernia. Hernias in adults are less common than they are in children, but they will still occur. If an adult’s abdominal wall failed to heal properly as a child, even if they failed to experience a hernia as a possible infant. An umbilical hernia occurs across the bellybutton, or navel. When this occurs, fatty or bowel tissue protrude through a weakened section of the abdominal wall. Here briefly analysis some of the common causes of umbilical hernias: Multiple pregnancies, Persistent cough, Abdominal surgery, Obesity, Heavily lifting/bending, Abdominal cavity fluid etc.