Blood Spots in Eggs: Cause, Safety, and How to Reduce Them
A blood spot is a small red fleck on or near the yolk caused by a tiny blood vessel breaking when the yolk released from the ovary. It is not a sign that the egg is fertilized, spoiled, or diseased. Blood spots are safe to eat and can be lifted out with a spoon. They are more common in brown egg layers, in older hens, and after startling events, and less visible in supermarket eggs only because those are candled and sorted out.
Most likely causes
- Normal ovulation rupture
A capillary breaks as the yolk releases. Random and usually harmless.
- Genetics and shell color
Brown egg layers show more spots and are harder to candle.
- Startle events
Sudden fright during ovulation raises the chance of a rupture.
- Vitamin A or K shortfall
Rare on complete feed, but possible on heavily diluted diets.
What to do this week
- Keep the flock on complete layer feed rather than mostly scratch.
- Reduce sudden disturbances around the coop, especially in the morning.
- Candle eggs before selling if buyers are sensitive to spots.
When it is worth a closer look
- Most eggs from the flock contain large blood or meat spots.
- Spots appear alongside blood on shells or in droppings.
This page is husbandry guidance, not veterinary diagnosis. If a bird is in distress, contact a poultry vet.
Common questions
Does a blood spot mean the egg is fertilized?
No. Fertilization produces a small white bullseye on the yolk, not a red spot.
Can you eat an egg with a blood spot?
Yes. Remove the spot if you prefer, then cook as normal.