is there anyway to repair a hernia without surgery?

Since a hernia is the protrusion of tissue thru the wall of a membrane, muscle or the like, and that protrusion usually can't occur without there being a tear of some kind, then it's reasonable to say that the tear cannot simply heal itself, especially with tissue passing thru it. So the only thing you can reasonable conclude is that surgery of some kind needs to intervene to repair it.

It depends on the type of hernia. For what you probably mean, probably not. There is such a thing as an umbilical hernia, which many children have at birth, and many of these close spontaneously as the child grows. If they don't close by age four or five, surgery may be necessary.

For hernias in older children or in adults, this is unlikely to happen and generally surgery is the recommended option. It's not always an emergent procedure--you can have some types of hernias more or less indefinitely without much danger--but generally you would want to fix it sooner rather than later.

Small hernias or hernias that present with pain must be fixed immediately, because the pain is caused by something being trapped in them and blood flow being cut off.

no, sorry