An epigastric hernia usually causes a bump to occur in the area below your sternum, or breastbone, and above your belly button. This bump is caused by a mass of fat that has pushed through the hernia. The raised area may be visible all the time or only when you cough, sneeze, or laugh. This bump, or mass, can grow and become larger in some cases. You can have more than one epigastric hernia at a time. An epigastric hernia can also cause tenderness and pain in the epigastric region. However, it’s common for an epigastric hernia not to show any symptoms.