The bronchial tubes swell and thicken with mucus, constricting airflow if they become infected or irritated. Contagious viral infections are the most common cause of bronchitis. Bronchitis might ...

Shortness of breath when walking short distances can occur suddenly or be a chronic condition. It should be evaluated, as it ...

Bronchitis can even be deadly as some 350 people in the U.S. die from the illness every year, per the Centers for Disease Control and Prevention. Here's what causes bronchitis, how the illness ...

The symptoms of a cold and bronchitis often resemble each other. Both illnesses can cause coughing fits, low-grade fever, and fatigue. There are, however, some key differences. The main symptom of ...

"The infection gets beyond the confines of the bronchial tubes and actually gets into the substance of the lung," said Dr. Schaffner. "Then, it causes inflammation in the tissues of the lung." ...

Acute bronchitis is primarily caused by viruses, like those that typically cause the flu, colds, or COVID-19. Less frequently, bacterial infections can trigger a bout of bronchitis. In some cases, ...

My cat coughing up phlegm: understand the underlying causes and learn evidence-based treatment methods to ensure your cat's ...

Allergies can also cause allergic bronchitis, with symptoms like coughing, wheezing, and shortness of breath. Understanding the connection between allergies and bronchitis can help you protect ...

Bronchitis affects the bronchial tubes, while pneumonia affects the lung air sacs. Without treatment, bronchitis can become pneumonia. You’re coughing, you’ve got a fever, and your chest feels ...