Continuous coughing in dogs

There are many causes of coughing in dogs, mainly including respiratory tract inflammation, cardiovascular diseases, allergic reactions, and parasite infections. Among them, respiratory tract inflammation is relatively common, such as bronchitis, pneumonia, pharyngitis, and tonsillitis. The diagnosis of coughing requires a combination of medical history, clinical symptoms, and relevant imaging examinations, such as lung CT and X-ray examination, while also paying attention to the abnormal changes of heart sounds and pulmonary respiratory sounds.

The causes of continuous coughing in dogs are as follows:

Consider respiratory tract inflammation, such as bronchitis, pneumonia, and pharyngitis. Clinical manifestations include coughing, increased secretion of eyes and nose, dry or wet rales in the trachea and bronchi during pulmonary examination, increased body temperature in the early stage of the disease, and continuous increased body temperature and accelerated heart rate as the disease worsens.
Consider cardiovascular diseases, such as left heart failure and pulmonary edema. Nighttime coughing is related to pulmonary edema, heart disease, and psychological factors, and presents as a dry cough.
Consider allergic reactions, mainly bronchial asthma. The symptoms will be exacerbated after inhaling allergens, and clinical manifestations include coughing and wheezing.
Consider parasite infections, such as heartworm. The risk of parasite infection is lower in dogs raised indoors, and clinical manifestations include coughing, decreased exercise capacity, and weight loss. Other symptoms include palpitations, internal heart sounds, and difficulty breathing. If a large number of worms block the right atrium and caval vein, it can cause sudden cardiopulmonary failure and even death.

The diagnosis of coughing involves a combination of medical history, clinical symptoms, relevant imaging examinations, such as lung CT and X-ray examination, while also paying attention to the abnormal changes of heart sounds and pulmonary respiratory sounds. If necessary, additional examinations such as blood routine, heartworm test, biochemical examination, and electrocardiogram can be combined.