Hens feces full of blood and strange consistency.

[mackenzie450]

What could this be caused by?

 

[Eggcessive]

Have you looked at her vent area to see if there is blood or an injury? How old is the hen? How is she acting? Coccidiosis, which usually affects young birds, and worms can cause blood in the droppings. Vent pecking injury, cancer, or passing something sharp that has been eaten might also be possible.