Symptoms of Bronchiolitis in Infants
Aug 24, 2022
Source: Cainiu Health
Dr. Xie Zixing
Introduction
In infants with chronic bronchitis, the primary symptoms are cough, sputum production, and wheezing. During acute episodes, symptoms such as cough, sputum production, and wheezing occur and may suddenly worsen. The main cause of acute exacerbation is respiratory tract infection, with most pathogens being viruses, bacteria, Mycoplasma, and Chlamydia. Sputum production is also present; in most cases, white, viscous sputum or serous, frothy sputum is observed, sometimes accompanied by vomiting.
Generally, chronic bronchitis is a chronic, nonspecific inflammatory response that commonly affects the mucosa and surrounding tissues of the trachea and bronchi. This condition develops gradually, has a prolonged course, and tends to recur—often worsening over time. So, what are the symptoms of bronchitis in infants?
Symptoms of Bronchitis in Infants
When infants develop chronic bronchitis, the primary symptoms include coughing, sputum production, and wheezing. During acute exacerbations, symptoms such as cough, sputum production, and wheezing appear or intensify suddenly. The most common cause of acute exacerbation is respiratory tract infection, with pathogens typically including viruses, bacteria, mycoplasma, and chlamydia. Hemoptysis (blood-tinged sputum) may also occur, often seen in viscous white sputum or frothy serous sputum accompanying vomiting and coughing.
Copious sputum production occurs in the morning, which may stimulate expectoration upon waking or during changes in body position. Wheezing and shortness of breath are also common; wheezing reflects bronchial inflammation, and some infants may concurrently have bronchial asthma. If emphysema is present, dyspnea may manifest later during exertion or physical activity. Tachypnea (rapid breathing) may also occur. Clinically, dyspnea accompanied by wheezing is termed “wheezing bronchitis.” Some infants may have coexisting bronchial asthma and emphysema, leading to dyspnea and respiratory distress following fatigue.
Recurrent respiratory infections—particularly in elderly patients—can significantly worsen disease progression and must therefore be taken seriously. We hope this information is helpful to you.
