It is necessary to use morning urine for pregnancy glucose tolerance test to get more accurate results. Morning urine is the first urine after waking up in the morning. Urine is stored in the bladder for a longer period of time, so it is more concentrated and the test results are more accurate. Doctors will therefore instruct pregnant women to keep morning urine for routine urine tests for glucose tolerance screening. Pregnant women who undergo glucose tolerance screening are required to have blood drawn on an empty stomach and urine retained for laboratory tests. Generally, the two tests are not ordered in any particular order. However, pregnant women need to drink glucose water when doing glucose tolerance screening, after taking glucose, the body’s blood glucose concentration will rise, resulting in positive urine sugar, at this time to do the routine urine test will produce errors. It is recommended that pregnant women eat a light diet the day before the glucose tolerance screening and take morning urine for testing to get a more accurate urine test result. Pregnant women should pay attention to the prenatal examination during pregnancy, actively listen to the advice of professional doctors to do a comprehensive nursing care, pay attention to rest, at the same time should relax, avoid tension, anxiety, any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.