Could be the Parvo virus. Or internal bleeding. Take your pet to the vet immediately.
Bloody diarrhea is sometimes called dysentery
Have you had symptoms like diarrhea or bloody stools lately?
Eating too many cherries can certainly give you diarrhea, but I have never heard of it giving you bloody diarrhea.... The red tint to it could make it look bloody if it did not digest well enough.
Go to the doctor
bloody diarrhea
Acorns affect the kidneys of the dog. Signs can include bloody urine or diarrhea, seizures, lethargy, loss of vision, coma or death.
bloody diarrhea
Clean...
An infection of the digestive system that causes bloody diarrhea.
Dysentery killed many people on the trail to Oregon.
infamatory bowel disease
This could indicate parvo which affects all dogs to greater or lessor degrees. A vet check up is indicated.