Normal Blood Sugar Range for Pregnant Women
May 22, 2025
Source: Cainiu Health
Dr. Liu Feng
Introduction
For pregnant women diagnosed with gestational diabetes, if using a blood glucose meter at home to test capillary blood from the fingertip, the fasting blood glucose standard should be below 5.3 mmol/L, and the 2-hour postprandial blood glucose should be below 6.7 mmol/L. Typically between 24 to 28 weeks of pregnancy, an oral glucose tolerance test (OGTT) will be conducted, during which if the fasting blood glucose reaches or exceeds 5.1 mmol/L,
Generally speaking, a pregnant woman's fasting blood glucose level should be less than 5.1 mmol/L, and it is typically recommended to maintain the lower limit at above 3.3 mmol/L. One-hour postprandial blood glucose should be lower than 10.0 mmol/L, and two-hour postprandial blood glucose needs to be controlled below 8.5 mmol/L.
If a pregnant woman uses a blood glucose meter to test capillary blood at home, the fasting blood glucose standard for diagnosing gestational diabetes is below 5.3 mmol/L, and the two-hour postprandial glucose should be below 6.7 mmol/L. Between 24 to 28 weeks of pregnancy, an oral glucose tolerance test (OGTT) is usually conducted. If the fasting blood glucose reaches or exceeds 5.1 mmol/L, the one-hour postprandial reaches or exceeds 10.0 mmol/L, or the two-hour postprandial reaches or exceeds 8.5 mmol/L, gestational diabetes can be diagnosed.
Pregnant women need to monitor their blood glucose regularly. Persistent abnormal blood glucose levels increase the risk of gestational diabetes, which can lead to complications such as macrosomia and preterm birth. Particularly for pregnant women with high-risk factors, such as family history, obesity, or advanced maternal age, closer monitoring of blood glucose changes is necessary to prevent and manage gestational diabetes and ensure maternal and fetal health.
Therefore, pregnant women should pay attention to their diet, choose fiber-rich foods, exercise moderately, and maintain healthy weight gain to keep blood glucose levels within the normal range.
