Thanks to the above posts. I hope he's going to be OK. Those results really just tell us it's not an egg/follicle thing, they don't give me any other indication of his health
Cysts are usually attached to a body structure with tissue. For it to have passed out of him without any tissue globs, bleeding, etc. is very weird. I hope he never passes anything like that again.
He has bred with a female a few times, so maybe I'll get some babies from him.
His name is Hubble...and he's now a mystery![]()