What will happen if an egg is broken inside a hen?

Don't hens usually have eggs stuck inside them until the hens push them out? SKWAK! No. we own loads of hens 5 of which have died due to being egg bound. though out the day their body generates a egg. There isn't really any symptoms of being egg bound but i did notice that our hens spent 4x the normal amount of time trying to lay, and kept going in and out. the overall answerer no just longer time spent trying to lay. and no you cant help them in any way.