There are couple of things as unsettling together groggily cracking open an egg for your breakfast just to discover a mysterious spot in or roughly the yolk.

Fear not, though — an ext often 보다 not, these spots room harmless. If her eggs come from your very own backyard flock, they may even lend insights around your chickens’ life conditions.

You are watching: This tiny egg is mysterious and dark.

Small, reddish-brown spots space blood spots, which are led to from a rupture top top the yolk surface throughout egg development inside the hen. These spots can range in appearance, from virtually indistinguishable point out on the surface of the yolk come spots diffused through the white the the egg, likewise known as the albumen.


“Essentially, lock are component of the inner story of what goes on v an egg,” stated Anne Lichtenwalner, director of the college of Maine vet Diagnostic Laboratory. “Eggs are complex reproductive events that occur inside the bird. Whatever is being applied in class by this organ that we refer to as the reproductive tract or the oviduct. The thing around the red point out is that’s wherein there’s to be a tiny hemorrhage in the oviductal tissue in the component that the hen is creating and excreting that material.”

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What might be causing those mysterious lines on her chicken eggs


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by Sam Schipani

Another point to look out for is a distinctive white bullseye form in the yolk — that means the egg has actually been fertilized. They space still ok to eat — the embryo will not continue occurring once the egg has been refrigerated — yet they may not be for the pass out of heart.

“Sometimes if you catch that really early right after the egg has been laid, you can find a tiny little bit of tissue,” Lichtenwalner said. “In part cultures, it’s taken into consideration ok and also actually a delicacy come eat this eggs that have emerging embryos in them.”

Most eggs v blood spots or various other aberrations don’t discover their way to supermarket shelves due to the fact that they’re detected by candling — the process of putting a irradiate behind one egg come spot any inconsistencies — or by more modern electronic spotters throughout processing and also packing.

“Egg producers deserve to spend a little extra time and also candle your eggs to examine for huge blood or egg spots so their customers don’t have actually to attend to them,” stated Donna Coffin, professor at the university of Maine cooperative Extension. “Most customers room understanding, but some might want a refund or instead of if the blood or meat point out are big and unappetizing looking.”

The process isn’t perfect, though.

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“Because it is a light sensitive methodology, climate birds that have a darker covering — it might not be quite as reliable at detecting things like blood point out in those varieties of eggs,” Lichtenwalner said.

For the many part, though, little aberrations in her chicken eggs shouldn’t prevent you from eating them, but keep an eye out for drastic changes in smell and also texture of the yolk.

“If there’s something that really watch odd in one egg nothing eat it,” Lichtenwalner said. “If that smells weird, for certain don’t eat it.”