Cough with pestle refers to the fact that bronchiectasis can be classified as congenital or secondary. Congenital is less common and is due to congenital bronchial dysplasia, a congenital defect or a genetic disorder. So, what tests are needed for cough with pestle finger? The following are the tests that need to be done for cough with pestle finger: 1. History of respiratory infections that induce bronchiectasis in early childhood, such as measles, pertussis or post-influenza pneumonia, or history of tuberculosis. 2, the presence of long-term chronic cough, coughing pus sputum or recurrent hemoptysis symptoms. 3.Physical examination of the lungs with fixed and persistent wet sounds on auscultation and pestle-like fingers (toes). 4.X-ray examination shows increased lung texture, thickening, disorderly arrangement, in which curly hair-like shadow can be seen, and small liquid flat appears in co-infection, and CT typically shows “orbit sign” or “ring sign” or “grape sign The typical manifestation of CT is “orbital sign” or “ring sign” or “grape sign”. The definite diagnosis depends on bronchial iodine oil imaging or HRCT, and related examinations should be performed if congenital factors are suspected, such as serum Ig concentration measurement, serum gamma-globulin measurement, pancreatic function test, nasal or bronchial mucosal biopsy, etc.