It is possible to draw blood for routine blood tests during the drinking of Chinese medicine. 1. Drinking Chinese medicine does not affect the routine blood test, because routine blood test mainly observes whether there are bacterial or viral infections, anemia or anemia disorders, etc., and the efficacy of Chinese medicine will not produce errors in the diagnosis of these diseases. 2. If you are doing biochemical programs, such as liver function, kidney function, blood lipids, blood sugar, etc., you need to fast because it can affect these lab indicators. It is recommended that people who have their blood drawn for laboratory tests try to do the test on an empty stomach in the morning, and fast after 10:00 p.m. the night before the test, and drink a small amount of water, so as to avoid affecting other tests after eating or drinking. If in doubt, consult your doctor beforehand.