1. First of all, physical examination: take blood pressure and auscultate the heart and lungs to see if there is hypertension, heart disease, onychomycosis and skin disease.

2, and then do a chest X-ray, mainly to check whether there is any abnormality in the lungs (such as infectious diseases such as tuberculosis).

3, test urine routine, stool, mainly check dysentery, typhoid fever, Escherichia coli and other infectious diseases.

4. Finally, draw blood, mainly from liver function test, to check whether there is hepatitis or other infectious diseases.