Many people believe that a blood spot in a chicken egg means that it is fertile. I’d like to clarify that misconception and explain to you exactly what it is. First of all, these eggs are nutritionally just fine to eat, and there’s no need to be grossed out either. A blood spot in the egg does NOT mean it’s fertile.
When you crack open an egg and see that teeny tiny blood spot, be assured it is nothing more than a ruptured blood vessel on the yolk surface that happened during the egg formation process. Or, sometimes in the wall of the oviduct. If the blood spot bothers you that much, it will stick to your finger if you lightly touch it. Out of sight, out of mind!