Why does a puppy cough and have phlegm? Analysis of the causes of puppy’s cough and phlegm

Jul 26,2025
4Min

Puppies coughing and producing phlegm is a respiratory infection

Puppies coughing and producing phlegm does not affect their mental state. It is usually a respiratory infection caused by a cold; due to inflammation of the respiratory tract, secretions accumulate in the trachea to form "phlegm" ; Over time, it can lead to lung infection and "pulmonary effusion"; therefore, seek veterinary help in time when your puppy coughs and has phlegm to avoid worsening of the condition.

Causes of respiratory tract infections in puppies

The most common causes of respiratory tract infections in puppies are bacterial infections and viral infections, which are more common in puppies, older dogs and dogs with compromised immune systems. Especially when dogs gather together, if there are dogs carrying the virus, other dogs with poor resistance will be easily infected; when taking dogs to a pet store or pet hospital, it may be because the dogs are more susceptible to infection. Many, indoor cleaning and disinfection are not thorough, hiding a large number of bacteria and germs, which is also an important factor in inducing respiratory infections in dogs.

Attention should be paid to the treatment of puppies with cough and phlegm

1. Consult the veterinarian in time and give medicine according to the veterinarian’s recommendations. Dogs’ resistance is relatively weak, unlike humans who can heal themselves through their own resistance. If you have phlegm, you must seek medical advice promptly.
2. It is not suitable to feed cough syrup. For symptoms of cough with phlegm, throat clearing and expectorant drugs should be used, and cough syrup is not suitable.
3. Feed plenty of warm water to help your dog soothe his throat and detoxify his body.
4. Do not feed antibiotics at will. Many antibiotics have significant therapeutic effects. Therefore, many dog ​​owners will feed antibiotics to dogs. However, excessive use of antibiotics for a long time will cause damage to the dog’s immune system. As a result, the resistance is reduced and it is easier to be invaded by viruses.

What not to do when a puppy coughs and has phlegm?

1. When a puppy coughs and has phlegm, do not let the dog catch wind and cold. Especially when sleeping at night, the temperature difference between day and night is large, so the dog kennel should be moved. Go indoors where there is no wind to avoid catching the cold.
2. Do not vaccinate. After vaccination, the dog's resistance will decrease and the condition will worsen. If it happens to be the time to vaccinate, you should wait until the dog has recovered from the cough before injecting the vaccine.
3. Do not bathe the dog, and try to go out as little as possible to avoid contact with sick dogs.
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