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Jane Lefler
Jane Lefler, Breeder,Behaviorist, formerVet Asst
Category: Dog
Satisfied Customers: 19759
Experience:  Former vol Vet Assistant.Breeder 18+ years Dog trainer / behaviorist
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my dog throwing up and now bloody stool with diarrah

Customer Question

my dog throwing up and now bloody stool with diarrah
Submitted: 7 years ago.
Category: Dog
Expert:  Jane Lefler replied 7 years ago.

Hi Sir or Madam,


Is your dog eating and drinking?

Is there any bleeding from any other openings?

has your dog had any bones recently?

When did your dog last eat?



Customer: replied 7 years ago.

not really eating

very little drinkin

still peeing tho not as much

no bleeding from any other openings....

ate last nite around 6

didnt throw up until around midnite and the last time he threw up was this morn arond 11

but about 30 min ago had diarrah with blood

Expert:  Jane Lefler replied 7 years ago.



It might be something he ate that didn't agree with him. You can give your dog some pepcid or Zantac. Read about Pepcid dosages and usage information here:

Zantac can be given to a dog at .25 to 1mg per pound every 8-12 hours. Read about usage here:


Wait an hour after the medication and try feeding him a small amount of boiled chicken and rice. If he keeps that down, you can feed him another small portion. As long as he does well, you can gradually put him back on his own food and monitor his bowel movements to ensure they firm up and no longer contain blood.


If he continues to vomit, you can try witholding all food and water till morning and then try again with small portion of chicken and rice. If there is no improvement, you will need to have him seen. If he has had any fatty foods like ham, duck, and bacon, he may have pancreatitis. Symptoms of pancreatitis vary but include vomiting, diarrhea, anorexia, weakness or collapse, dehydration, shock, fever, depression, and upper abdominal pain. A dog may indicate abdominal pain by acting restless, panting, crying or wincing when picked up, shaking, standing with an arched back, or lying with the front end down and the rear end elevated

You can read about it in detail here:


Other causes could include parasites such as worms or a protozoan infection such as coccidia or giardia. Most of these start with diarrhea, but since they can have these symptoms, I have included them. Here are sites on worms, coccidia and giardia, which you may find informative.


If your dog refuses to eat, then it is possible your dog has hemorrhagic gastroenteritis (HGE) . HGE is very serious and life threatening. You can read about it here:


If that is the case, your dog will need to see a vet immediately. I hope this information has been helpful to you.






Jane Lefler and other Dog Specialists are ready to help you
Customer: replied 7 years ago.
me again...... he was happy about eating some chicken about hour ago.... he jus pooped again nothing but liguid..... very bloody....... help
Expert:  Jane Lefler replied 7 years ago.



It is a very good sign that he is eating. Most cases of red blood in the stool are not immediately life threatening and if he is eating, it is likely to be from parasites, coccidia, giardia or even an anal gland issue. If you included the rice, that should help firm up the stool. I would have him seen by your vet tomorrow if it doesn't so he can be checked for the above mentioned things. Now if he starts bleeding from any other places, you will want to have him seen immediately as that might indicate rat poisoning. Only you can judge how ill your dog is and based on that decide on an emergency visit or not. All I can do is provide you with information about the causes and which are most likely.