Petco Text Logo
Petco Pet Logo

Why is my dog having bloody diarrhea with mucus and then constipation?

Updated On September 23rd, 2025

Male Golden-Chow, est 7 yrs old. Thurs AM shocked to find he'd pooped in his room, (first ever) normal stool w/mucus casing and lg pool of foul smelling diarrhea (light green) Fed usual ration. Later outside another lg pool of green diarrhea. Later trip out a 2"x5" pool of bloody diarrhea, total of 6 bms during day. Stool firming up, some blood streaks & mucus noted. W/H food for 12 hrs. Has had no bm now for 2 days. Eating OK, drinking water, but not as much as normal. V-concerned. Help/Tnx.

1 Answer

Most Helpful Answer

Image profile

Answered By Destini R. Holloway, DVM

Veterinarian

Published on February 5th, 2017

Poor guy. This is very concerning indeed. Bloody diarrhea in older pets should always be concerning for an owner and lead to some testing to ensure there is nothing serious going on internally, such as intestinal masses, pancreatitis, or severe colitis. Some other possible causes are intestinal parasites or a malabsorption problem. If you have already gone through the proper steps of withholding food and feeding a bland diet (boiled plain chicken and rice or cottage cheese OR Purina EN Gastrointesitnal) for more than 24 hrs and he is still not better, then this is an indicator that he needs additional help through your local vet. It is good that he is still eating and drinking water, so he is relatively stable for today, but he should definitely get seen by tomorrow if he isn't 100%. The vet can run some testing (fecal exam, +/- bloodwork, +/- x-rays) to diagnose the underlying condition and treatment (i.e. Metronidazole for the loose bloody stool, Rx for bland diet canned dog food, fluids if he is dehydrated, etc) specific to his disease condition. I hope that your pet Golden-Chow gets better soon! Take care. *If you wish to discuss more specifics about his condition through private consultation then please don't hesitate to send in that request. We are here to help!*

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored