My elderly dog is vomiting dark and has diarrhea for two weeks?

Melena (dark, tarry stool) is concerning for bleeding from the digestive tract, specifically from the small intestine. This coupled with the abdominal discomfort, vomiting and diarrhea are all signs that warrant an abdominal ultrasound being preformed. Some possibilities that come to mind are GI ulceration, particularly if Piccolo has been on a non-steroidal anti-inflammatory for sometime; neoplasia or cancer also has to be considered due to Piccolo's age. I think you will have the best chance of getting some answers with ultrasound and potentially more specific blood work. I hope this helps a bit and best of luck to you and Piccolo.

If Sky has vomiting and diarrhea she needs to see a vet. Unfortunately her symptoms are very vague and could be from any illness or disease process. If Sky is a puppy I would be very worried about parvovirus. If she is an adult my first guess would be hemorrhagic gastroenteritis. Either way, she needs to see a vet. Please take her as soon as possible.

If it is a one time occurrence I would not be too worried unless the feces were black (tarry), If that is the case immediately stop the meloxicam, as there may be a gastric ulcer caused by the NSAID. Keep giving the Ultram then. If the feces are black again the next time he does his business, Dexter will need to be seen by an emergency vet (PetER). If the color of the feces is more brown, then there is time to see the vet on Monday, and discuss the further administration of the Meloxicam. If it never was tarry or black, then your dog may just have had a bout of gastroenteritis, which only needs to be treated if the diarrhea does not go away within 2-3 days.

Bloody diarrhea is pretty common in dogs, and tells us that there is a LOT of inflammation in the colon. It can have several causes, and it often needs medications to clear up. I would recommend taking Holly to the vet for evaluation. The vet may also recommend some lab work to see if they can identify the cause and decide on the best treatment.

Poor guy! From your description, it definitely sounds like something is wrong. Vomiting dark black material and dark tarry stools are often signs of bleeding in the stomach or intestines, which can be extremely serious. Not eating and not wanting to walk down the stairs are vague signs that indicate he is in pain or not feeling well. I would strongly recommend taking your dog to the vet today for an exam, since this sounds like quite a serious problem. He/she can do blood work and x-rays if needed to help diagnose the problem and get him started on appropriate treatment.

4 days is very long for a dog to have vomiting and diarrhea. I recommend that Alexa see a vet as soon as possible. Potential causes for her illness include dietary intolerance, dietary indiscretion, food allergy, intestinal parasites, GI blockage, gastroenteritis, bacterial or viral infection, IBD, pancreatitis, among others. Your vet may recommend abdominal x-rays, bloodwork, or an intestinal parasite screen to help diagnose her ailment and create an appropriate treatment plan.

It sounds as Caramelo is suffering from a gastrointestinal condition, possibly an infection. it could also be due to ingestion of a foreign body material. i would recommend taking her to the vet the first chance you get, she will need to be checked first, if the vet thinks it's a simple gastrointestinal infection she will need an anti vomiting injection, antibiotics and a special food for a few days in order to get better. if the vet thinks it is more serious she will need a blood test and possibly an ultrasound in order to find out what is wrong.