One of my girls has laid an egg with blood smeared over it - She's healthy, bright & otherwise normal. I popped upside down to take a peek at her vent and there seemed to be a 'bulge' of skin coming out of her vent as I picked her up, but if dissapeared back inside really quickly & everything now looks normal (I think).
She only came into lay for the first time in Nov. and does lay some pretty large eggs for her size

She lays about 3 eggs a week and spends a looooong time in the box when she does. I've seen no other problems with her eggs, nor seen blood before - should I be worried?
Thanks.