The pregnancy checkups are generally in 10-12 times, and the content of each maternity checkup is different, so whether you need to fast or not to do pregnancy checkups should depend on the specific checkups done.1. Checkups that require fasting: listed in chronological order, the items that must be checked in the first maternity checkup in early pregnancy are liver function, kidney function, fasting blood sugar, blood lipids and other tests, which require fasting. Fasting is required for the oral glucose tolerance test from 24-28 weeks of mid- to late-pregnancy. If the test is not fasting, the blood glucose test is not accurate and may be misdiagnosed as gestational diabetes. Fasting is also required to review liver function and kidney function at 32-34 weeks of pregnancy, so as to understand whether there is anemia, thrombocytopenia, cholestasis syndrome, etc.; 2. Tests that do not require fasting: In addition to the above tests, the first maternity checkup, there are routine blood, urine and ultrasound tests that do not require fasting. In addition, unless there are pregnant women because of unexpected situations, such as the occurrence of infection, vertigo, at this time should be examined in a timely manner according to the actual situation, pregnant women can take the initiative to consult the doctor before the examination whether fasting is required, the doctor will advise different precautions according to the examination.