There are roughly 20 different types of hernia, but the most common are: inguinal, incisional, umbilical and hiatal. All types of hernia are the result of tissue moving out of its normal space and into a different space. For example, umbilical hernia occurs when the intestine or bowel push out of the abdomen and into the belly button area.

What is a hiatal hernia?

Can a hernia cause internal bleeding?