What is the abnormal exit of tissue through the wall of the cavity in which it normally resides called?

Had an abdominal hernia. For me, no big deal. Did get some time off my job! Nemo

Opt for the mesh patch. Longer recovery but almost 0% failure rate.

Recently has a close relative die after hernia surgery-don't let it go without having it checked professionally

I was born with an umbilical hernia, so no navel, just the long scar.