blood in egg

it can be caused by something they have eaten or by the white not forming correctly. I would check the eggs for the next week or so just to be sure everything is ok, if there is still a problem take whichever hen is laying the problem eggs to a vet for a general check up. Keep feeding a quality feed and if they are free ranging check the surrounding plants.

Thanks for replies - this is the first egg we have had blood in and comes from our little bantam she has been laying more or less an egg every day since Sept Oct time.  They are Sussex Chickens and a Sussex bantam, if that is any help to you.  Will do as you say and take her to the vet but she is very lively and does not seem depressed or indeed looking unwell and eating well on top quality layers pellets - (Marriages) with again small amounts of good quality corn in afternoon - plenty of grit and they are free in the garden to help themselves if needs be.