Causes of dogs coughing up blood:

1. Dogs coughing up blood caused by lung disease. For example: hemoptysis caused by tuberculosis, lung abscess, pneumonia, lung tumors, and lung trauma (injuries, rib fractures).

2. Dogs coughing up blood caused by bronchial diseases. For example: bronchiectasis, bronchitis, bronchial foreign body, etc.

3. Dogs coughing up blood caused by cardiovascular disease. For example: left heart failure, pulmonary edema, etc.

4. Dogs coughing up blood caused by blood diseases. For example: purpura, aplastic anemia, hemophilia, etc.

First aid methods for dogs coughing up blood:

1. Let the dog stop exercising and training immediately.

2. If the dog is very irritable but does not have respiratory dysfunction or extreme physical weakness, it can be appropriately sedated and injected with 1~2 mg/kg of chlorpromazine intramuscularly. body weight; or take 5 to 10 mg of diazepam orally.

3. If your dog has a severe cough, you can use antitussive drugs, but do not use drugs that suppress breathing such as morphine.

4. Choose the appropriate hemostatic drug according to the dog’s condition and specific cause of disease: hemostatic drug, 2 to 4 ml, intramuscular or intravenous injection; Vitamin K3, 10 to 30 mg, intramuscular injection .

5. Send the dog to the hospital for examination in time and provide treatment according to the specific cause of the dog's disease.