The air is filled with various impurities, floating dust, bacteria, viruses, etc. Dogs inhaling these harmful substances can easily cause respiratory diseases, induce inflammation, and cause problems such as coughing and runny nose.

Bronchitis

Bronchitis is an acute or chronic inflammation of the bronchial mucosa of dogs and cats under the action of various pathogenic factors. Clinically, cough is the main feature. Repeated attacks can seriously reduce the lung function of sick pets, leading to the formation of emphysema, cor pulmonale, and chronic obstructive pulmonary disease over time, thus threatening life.

Initial stage: loss of appetite, vomiting, dry cough, lack of energy, slight increase in body temperature;

Mid-term: Body temperature continues to rise, pulse speeds up, and breathing becomes difficult.

Pneumonia

Dogs are prone to respiratory infections due to colds, stale air, poor ventilation, and lack of vitamins in the body. If the infection is not treated in time, it will invade the lungs and cause pneumonia. If it is not healed for a long time, the immune system of the dog's entire body will be weakened. In severe cases, it can cause pulmonary edema, cause acute respiratory failure, and may even be life-threatening.

Initial stage: runny nose, dry cough, difficulty breathing;

Middle stage: poor energy, reduced appetite or no eating, increased body temperature, shortness of breath, red eyes, sunken eyeballs, and dehydration.

Cardiogenic causes include any heart disease that allows fluid to accumulate in the lungs.

These are usually those that affect the functioning of the left side of the heart, since failure on this side is inseparable from fluid accumulation in the lungs.