What to Do When Your Dog is Coughing Up Blood

It is painful to watch your dog cough up blood, and it can make you very anxious as well. This article is a brief guide for owners so that they can take immediate action when they have to watch their dogs cough up blood. 

Dogs don’t get cough blood generally. Hence, when you catch your dog suffering this way, you should know that there are underlying reasons behind this. The reasons may be quite severe and may have connections with Tuberculosis, Hematemesis, and Pulmonary Vascular disease. 

Although your dog may have other reasons behind coughing up blood, it is best to gain some knowledge before proceeding with the cure. So let’s get to know in detail what is going on. 

Causes of Your Dog Coughing Blood

Any issue in the lungs or the respiratory system can cause dogs to cough blood. Here is a brief explanation of the common causes of dogs coughing blood. 


Vomiting or coughing may be related closely to Hematemesis. This is, unfortunately, a severe health condition, in which case, the dog bleeds internally. The blood that comes out in the form of coughing or vomiting is actually the blood that bled inside. 

The symptoms of Hematemesis include black or brown vomit, and dark stools. The causes of Hematemesis are intestinal or gastric varices, stomach tumour, oesophagus tumour, exposure to radiation, ulcers, Mallory-Weiss Syndrome, peptic ulcer, gastritis, and gastroenteritis. 

On the other hand, there are other causes which are not related to a disease, such as a nose bleed in the digestive tract, excessive coughing and oral surgery. 

On the whole, if you notice any of the symptoms above, you must consult a veterinarian immediately. Sometimes, a lot of blood is lost when a pet has Hematemesis, which can even lead to death. Therefore, you must take action as soon as possible.

Pulmonary Vascular Disease

Pulmonary Vascular disease affects the lungs through the blood vessels. It may be followed by shortness of breath. 

This disease can be genetically inherited and for unknown reasons. Dogs with Pulmonary Vascular disease may have a hard time allowing oxygen into their blood vessels. 

This ailment can lead to your pet coughing blood, experiencing inflammation of the right side of the heart, have an irregular heartbeat, and pulmonary blockage. 

In this case, you also have to take immediate action to treat your dog, otherwise it may lead to serious consequences. 


Although uncommon for dogs to have Tuberculosis, it is generally caused by exposure to humans with the disease. It is also caused by consuming milk, tissue or sputa. 

If your dog has somehow been contaminated with this ailment, it will show the following symptoms – harsh coughing, weight loss, anorexia and fever. As a rule, if your dog has been suffering from Tuberculosis, it has to be euthanized. 

In order to confirm that your dog has indeed been tormented by Tuberculosis, seek the advice of an expert. TB can be fatal if diagnosed too late. 

Other than these top causes, other health conditions, such as kidney disease, liver disease, heartworm, hormonal imbalance, bacterial and viral infections, toxic ingestion, clotting disorders, parasites, and Inflammatory Bowel Disease may also be the reason behind your pet coughing up blood. 

How to Prevent Your Dog from Coughing Up Blood


Once you have been able to identify the main reason your dog is coughing up blood with professional help, treatment and prevention become easier. If your dog has Hematemesis, prevention may not be possible if, for example, it is gastric cancer.

On the bright side, your veterinarian can arrange a healthy diet and exercise for your dog, which may significantly help with gastritis and ulcers. 

For Pulmonary Vascular disease, a healthy diet and exercise can work miracles in preventing build-ups in the arteries of your dog. At the same time, heartworms can be prevented through proper medication. 

On top of that, you can prevent your dog from getting infected by Tuberculosis by keeping it away from an infected human or animal patients. Furthermore, to prevent the bacteria of TB infecting your dog, don’t let your dog eat the carcass of dead animals that may be carrying the bacteria. 

For the most part, living in a clean and natural environment, eating a healthy diet, and exercising regularly are able to keep most diseases at bay. 

To Sum Up

It is okay for your dog to cough sometimes, and a simple home remedy for colds can cure that. In fact, even when your dog is coughing blood, and is already in treatment with the veterinarian, you can give them soothing, hot soups to drink. 

However, be very mindful of what you feed it because you don’t want to make its condition worse. Above all, you must take permission from your veterinarian before feeding your dog anything new. 

On the whole, never miss any health check-ups for your dog with the vet so that even if there is a disease infecting it, the doctor can figure it out sooner. In any case, we hope this article was helpful and informative. 

1 Comment
  1. Great article addressing what to do when such issues arise. No one wants to have to practice these, but whenever (if ever) it happens, we are well aware. Also, I’ll like to stress how in situations like this, asides from dealing with the matter as a first aid, the vet shouldn’t be left out of the recovery process.

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