what causes bronchitis?

Question

answer to causes of bronchitis

Answer 1

Acute bronchitis is usually caused by a virus. It is more common during the winter months, and you often develop it after having an upper respiratory tract illness such as influenza (flu) or a cold. Respiratory syncytial virus (RSV) may be a cause, especially in adults older than 65. Acute bronchitis is caused by bacteria about 10% of the time.

Acute bronchitis can also be caused by exposure to smoke, chemicals, or air pollution, all of which can irritate the bronchial tubes, or it can develop from accidentally inhaling (aspirating) food, vomit, or mucous material.

Answer 2

2

Answer 3

Acute bronchitis usually begins with the symptoms of a cold, such as a runny nose, sneezing, and dry cough. However, the cough soon becomes deep and painful. Coughing brings up a greenish yellow phlegm or sputum. These symptoms may be accompanied by a fever of up to 102°F (38.8°C). Wheezing after coughing is common. About 90% of acute bronchitis is caused by a bacterial infection. In uncomplicated acute bronchitis, the fever and most other symptoms, except the cough, disappear after three to five days. Coughing may continue for several weeks. Acute bronchitis is often complicated by a bacterial infection, in which case the fever and a general feeling of illness persist.
While chronic bronchitis is caused by inhaling respiratory tract irritants; it may also be due to recurrent bouts of acute bronchitis. The most common cause, however, is the irritation of cigarette smoke. The cells that line the respiratory system contain fine, hair-like outgrowths called cilia. Normally, the cilia of many cells beat rhythmically to move mucus along the airways. When smoke or other irritants are inhaled or when there is irritation from repeated dry coughing, the cilia become paralyzed or snap off and the airways become inflamed, narrowed, and clogged. This leads to difficulty breathing and can progress to the life-threatening disease emphysema. A mild cough is usually the first visible sign of chronic bronchitis. Coughing brings up phlegm, and wheezing and shortness of breath may accompany the cough.

Answer 4

nasal passages get excess mucus and it drain into your bronchial tubes and since you dont know it that thick fluid causes infection since fluid of any kind is not suppose to be in any area of your lungs.your smaller tubes when are off braches of the bronchial tubes called bronchi get infected and you get bronchitis.if you smoke you get this regularly i did and i got it 2 to 3 times a month except in the summer.i would have an ear nose and throat specialist examine yours for possible problems that would cause this bronchitis.if your a smoker quit because if you dont you can pay the doctor most of your extra cash.you may have the onstart of asthma.im not saying you smoke but second hand can be just as debilitating good luck

Answer 5

Smoking

Answer 6

Smoking, dust and fumes (air pollution)

More information here
http://www.salukisearch.com/causes_of_bronchitis.html
and here
http://www.natural-treatment-guide.com/bronchitis/causes-of%20bronchitis.html

Answer 7

Irritation to the bronchial tubes, which are the tubes going into your lungs. It causes lots of phlegm, and if you aren't careful it can turn into pneumonia in no time flat.