Wife has a floating hernia on lower part of her stomach and its large. is there danger

Not familiar: With the term "floating" hernia. Size is not as important as symptoms of pain with nausea or vomiting or lack of bowel movement. Sometimes a larger size can be more difficult to repair. Sometimes a ct scan can evaluate the hernia for concerns. Notify your surgeon of any changes ir concerns.

Maybe: I have never heard of the term "floating" with regards to a hernia, but hernias can increase in size and cause pain and discomfort. Sounds like an examination by a surgeon with significant experience in hernia repair is in order. Best of luck!