Detailed explanation of the must-do prenatal check-up items for pregnant women. Pregnant women need to undergo multiple prenatal check-ups during pregnancy in order to detect and deal with abnormal conditions during pregnancy in a timely manner. So, what are the necessary prenatal check-up items for pregnant women? The following is a detailed explanation from four aspects. 1. Routine blood examination Routine blood examination is one of the must-do items during pregnancy. First of all, routine blood examination can check whether the physiological indicators such as platelets, white blood cells, and red blood cells of pregnant women are normal to ensure the health of pregnant women. Secondly, routine blood tests can also detect whether pregnant women are infected with viruses, bacteria, etc., so that measures can be taken in advance to avoid maternal and infant infections. Pregnant women should have regular blood tests, especially