Red Spot in Egg Explained: Harmless Blood Spot

A red dot sometimes seen in a boiled or raw egg is a blood spot, a tiny clot of blood that forms when a tiny blood vessel in the hen's ovary or oviduct ruptures during egg formation. The spot is harmless and does not indicate a developing embryo; most commercial eggs are unfertilized and cannot become chicks. Blood spots occur more often in fresh, farm‑produced eggs because industrial sorting equipment removes many of them before packaging. The presence of a blood spot does not affect the safety or nutritional value of the egg, and cooking will neutralise any concerns. If the visual appearance is off‑putting, the spot can be removed with a spoon or knife before consumption.