...to be freaked out by this (gross photo included)

[Bubblewings]

Sorry - know this isn’t really a AIBU but desperate to know what I have just found in a hen egg. I cracked it open and came across this thing which looks like a cocoon!! If anyone knows what it is please let me know!

Probably an embryo

Chicken abortion.

Possibly a double yoker gone wrong..

Looks like a lash egg - an infection of the bird’s reproductive system which sometimes ends up in their eggs.

When I had ducks this used to happen occasionally. Bit gross but not harmful.

www.backyardchickens.com/threads/weird-thing-in-egg.1148513/

Thanks for replies, I was thinking along the same lines - not nice but happens I guess.

Thanks ComtesseDeSpair wanted to hear from someone with experience of this - never come across this before and freaked me out a bit

Good job you cracked it rather than boiled it

The egg itself looks well and truly stale, going by the way the white looks more like water than gel.

I wouldn't eat the rest of the box without checking each one individually and even then. only for baking.

FrogFairy that’s what I was thinking!!!
Mitzik just a poor photo, the white was fine

Just a bit of lash egg. My girls lay full size ones occasionally- always makes me jump when I go to pull the eggs out of the nesting box and find a little water balloon in there! Sometimes eggs have blood spots in too. I think they're scanned and eggs with blood spots filtered out of commercial eggs. Anyway, all pretty normal stuff. Don't worry!

Thanks Peacocking, reassuring to know it’s a normal abnormality as it were! - the eggs I bought were supermarket free-range ones. I’m assuming this one got through the filter process and the other ones are fine to eat.