What is epigastric hernia?

Protrusion of extraperitoneal fat through defect in the linea alba anywhere between xiphoid process and umbilicus, midway between these structures acquired, manual labourers, age 30-45 precipitated by strain causing tearing of interlacing fibers of linea alba Initially protrusion of extraperitoneal fat through opening of linea alba by a small blood vessel, no well-formed sac called fatty hernia of linea alba. Then hernia grows , drags pouch of peritoneum and becomes true epigastric hernia contains omentum or bowel