What does it mean if you crack an egg and blood is in it... Is there any type of Myth out about being a bad omen or something?

The presence of blood in a cracked egg is usually caused by a ruptured blood vessel in the hen's oviduct during the formation of the egg. It is completely natural and safe to consume an egg with a blood spot and has no nutritional impact.

No scientific evidence supports the superstitious belief that finding a blood spot in an egg is a bad omen. Such notions can vary across cultures and are often rooted in traditional beliefs rather than evidence-based facts.