Sputum sparse white may be caused by chronic bronchitis, viral pneumonia, tuberculosis and other diseases.
1. Chronic bronchitis: it is a chronic non-specific inflammation of the mucous membrane of the trachea and bronchial tubes caused by infectious or non-infectious factors, which may be related to chronic irritation, viral, bacterial and other infections, and usually results in morning coughing and coughing up sputum, which is usually white frothy sputum or plasma sputum, which is sparse and whitish in color.
2. Viral pneumonia: viral pneumonia is a viral infection caused by inflammatory lesions in the lungs, can be transmitted through droplet contact, etc., the patient will have some systemic symptoms as well as respiratory symptoms such as coughing, coughing sputum, coughing sputum may be manifested as sputum sparse white.
3. Tuberculosis: Tuberculosis is an infectious disease of the respiratory system caused by the tuberculosis bacillus, the main manifestations of coughing and coughing up sputum, low-grade fever, fatigue, etc., the beginning of the sputum is sparse white sputum, with the development of the disease, sputum with blood and other symptoms may occur.
It is recommended to go to the hospital in time for a detailed examination of sputum, and under the guidance of the doctor for the cause of the symptomatic treatment.