It's crucial to seek immediate veterinary attention. Chest swelling in dogs can be a sign of serious health problems, including:
* Heart failure: This can cause fluid to build up in the chest.
* Pneumonia: This can cause inflammation and fluid in the lungs.
* Lung cancer: This can cause tumors that press on the lungs.
* Trauma: This can cause bruising or internal bleeding in the chest.
* Other conditions: There are many other possible causes of chest swelling in dogs.
Symptoms that may accompany chest swelling and warrant immediate veterinary attention:
* Difficulty breathing
* Coughing
* Wheezing
* Lethargy
* Loss of appetite
* Weight loss
* Vomiting
* Diarrhea
A veterinarian can perform a physical exam, run diagnostic tests (e.g., blood work, chest x-rays), and determine the underlying cause of the swelling. They will then be able to provide the appropriate treatment.
Please do not try to diagnose or treat your dog's chest swelling yourself. Contact your veterinarian or an emergency veterinary clinic immediately.