Acute bronchitis is a common and frequent disease of the respiratory tract, often secondary to upper respiratory tract infections, and is often an early manifestation of pneumonia. The following is a specific explanation, I hope you can find bronchitis in time to take timely treatment. The symptoms of acute bronchitis: 1, morning, sleep position change, inhalation of cold air or physical activity, there are paroxysmal cough. Sometimes even coughing all day long. The cough may be accompanied by nausea and vomiting or chest and abdominal muscle pain. When accompanied by bronchospasm, there may be croup and shortness of breath. 2. The onset of the disease is often preceded by symptoms of upper respiratory tract infection, such as nasal congestion, sneezing, sore throat and hoarseness. Systemic symptoms are mild, with only mild chills, fever, headache and generalized aches and pains. The cough is not heavy at the beginning and is irritating with little sputum. 1~2 days later the cough intensifies and the sputum changes from mucus to mucopurulent. 3. Acute tracheobronchitis is usually self-limiting, with fever and general malaise subsiding in 3 to 5 days, and coughing sometimes lasting for several weeks. 4. X-rays of the chest are not abnormal or there is only a deepening of the lung texture. Blood lymphocytes may increase in viral infections, and the total white blood cell count and neutrophil ratio increase in bacterial infections. 5.Mucus secretions may have coarse dry rales when they are in the larger bronchi, and disappear after coughing. When watery secretions accumulate in the small bronchi, a wet rhotic sound is heard in the lungs. The initial and mid-term symptoms of acute bronchitis 1. Initial symptoms At the beginning of the disease, patients will experience acute upper respiratory infection symptoms, such as nasal congestion and ground fever, soreness in the back and muscles, a tingling sensation in the chest when coughing, and sometimes a dry cough without sputum, and sputum will appear later in the disease. Some patients may have a low fever, usually not more than 39.5 degrees Celsius, and the fever can last for about three to five days. 2. Late symptoms In the middle stage of the disease, patients will have phlegm when coughing, some patients’ phlegm is very sticky and not easy to cough out, which will make breathing unpleasant, you can give patients some drugs that can dissolve phlegm, which is very helpful for the treatment of this disease. A small number of patients will also lead to infection in the lungs as well, as evidenced by the appearance of wet rales, and serious complications can lead to chronic respiratory failure or even acute failure.