MissChick@dee, I believe it is called Fatty Liver Hemorrhagic Syndrome[FLHS] in hens when they have internal bleeding. I probably shouldn't have mentioned in my last statement about veins weakening and causing internal bleeding since that happens in people with advanced liver issues. People with advanced liver problems are prone to having issues with their veins enlarging and weakening in esophagus known as esophageal varices thus causing veins in their esophagus to rupture causing internal bleeding. Hens with fatty liver run risk or hepatic rupture [internal bleeding]. Some articles say FLHS is one of the most common noninfectious causes of mortality in laying hens.