For either acute bronchitis or chronic bronchitis, signs and symptoms may include:  Cough Production of mucus (sputum), which can be clear, white, yellowish-gray or green in color — rarely, it may be streaked with blood Fatigue Shortness of breath Slight fever and chills Chest discomfort  If you have acute bronchitis, you might have cold symptoms, such as a mild headache or body aches. While these symptoms usually improve in about a week, you may have a nagging cough that lingers for several weeks. Chronic bronchitis is defined as a productive cough that lasts at least three months, with recurring bouts occurring for at least two consecutive years. If you have chronic bronchitis, you're likely to have periods when your cough or other symptoms worsen. At those times, you may have an acute infection on top of chronic bronchitis. When to see a doctor See your doctor if your cough:  Lasts more than three weeks Prevents you from sleeping Is accompanied by fever higher than 100.4 F (38 C) Produces discolored mucus Produces blood Is associated with wheezing or shortness of breath 
acute bronchitis chronic bronchitis  signs symptoms may include:  cough production mucus (sputum)  can clear  white  yellowish-gray green color — rarely  may streaked blood fatigue shortness breath slight fever chills chest discomfort  acute bronchitis  cold symptoms  mild headache body aches  symptoms improve week  may nagging cough lingers weeks  chronic bronchitis defined productive cough lasts least months  recurring bouts occurring least consecutive years  chronic bronchitis  you're likely periods cough symptoms worsen  times  may acute infection top chronic bronchitis  see doctor see doctor cough:  lasts weeks prevents sleeping accompanied fever higher 100 4 (38 c) produces discolored mucus produces blood associated wheezing shortness breath 
bronchitis