Sputum examination is usually used for pathogenicity examination and cytology examination, tumor cytology detection.
1. Pathogenetic examination: sputum examination can check whether there are bacteria, fungi, antacid staining in sputum, and it can also be used to detect influenza virus as well as new coronavirus detection.
2. Cytologic examination: eosinophils can be seen in the sputum of patients with bronchial asthma, pulmonary schistosomiasis, and tropical eosinophilia. Erythrocytosis can also be detected in primary lung, trachea and bronchial hemorrhage.
3. Tumor cytology test: through sputum examination can also be found in the sputum whether there is the presence of tumor cells, usually the positive rate is low.
It is recommended to go to the hospital for sputum test when sputum is found to be abnormal, and treatment is carried out under the guidance of doctors.