Gestational diabetes is defined as various degrees of impaired glucose tolerance or diabetes mellitus that are first detected after confirmation of pregnancy. Regardless of whether these conditions persist after delivery, it should be considered as gestational diabetes. If gestational diabetes is not detected and treated in time, it can have serious adverse consequences for both the pregnant woman and the fetus. Therefore, we must identify gestational diabetes at an early stage, so that pregnant women who are prone to diabetes can begin to receive diabetes health education and preconception screening before they become pregnant, and once they become pregnant, they can be screened for gestational diabetes in time for early detection of diabetes. For those at high risk for gestational diabetes, appropriate preventive measures can be taken to minimize the chances of its occurrence. So, who are the groups of women at risk for gestational diabetes? Generally speaking, if you have the following characteristics, then you need to be vigilant, because your chances of developing gestational diabetes are much higher than normal. 1, obese women, especially the severely obese. Obesity is not only a high-risk factor for type 2 diabetes, but also a high-risk factor for gestational diabetes. Obesity here not only refers to pre-pregnancy obesity, but also includes the rapid weight gain after pregnancy. With the westernization of modern lifestyle, many women of childbearing age now consume too much high sugar and high fat food before pregnancy, while physical exercise is becoming less and less, and they often go out by car instead of walking, which all tend to cause pre-pregnancy obesity. After pregnancy, some pregnant women and their families worry about the lack of nutrition of the fetus and excessive intake of nutrients, too many nutrients can be converted into fat in the body and lead to the accumulation of body fat, resulting in excessive weight gain during pregnancy, this situation is also likely to induce gestational diabetes. 2. Those who have been clearly diagnosed with gestational diabetes or had a huge baby before. Some women who have had gestational diabetes in a previous pregnancy can return to normal glucose tolerance after the pregnancy is over, which means that the diabetes disappears after delivery. Also, if a woman has had a huge baby before, the risk of developing diabetes in another pregnancy is also high. 3. Those who have had a positive urine sugar. The diagnosis of diabetes is currently based on blood sugar as a criterion, but a positive urine sugar is often a clue to diabetes as well, and a positive urine sugar may indicate that you have abnormalities in your sugar metabolism. Of course, when diagnosing gestational diabetes, you should never base your diagnosis solely on elevated urine sugar because the urine sugar test itself is susceptible to false positives due to many factors, such as excessive use of vitamin C during pregnancy, or lowered renal sugar threshold due to your own kidney disease. Therefore, if you find any abnormalities in urine sugar, you must go to the hospital for further blood glucose check to make a clear diagnosis. 4. Women suffering from polycystic ovary syndrome. Polycystic ovary syndrome is a disease that occurs easily in women of childbearing age, mainly manifested as obesity, hirsutism, infertility, irregular menstruation, etc. Women with polycystic ovary syndrome are often obese and insulin resistant, and insulin resistance and obesity are both high-risk factors for diabetes, so women with polycystic ovary syndrome must pay attention to hospital screening for gestational diabetes after pregnancy if their blood sugar has been normal before pregnancy and no diabetes or abnormal glucose tolerance has been detected, so as not to miss the diagnosis. 5. Women with a family history of type 2 diabetes. Type 2 diabetes is a multi-gene genetic disease, so if you have a family member with diabetes, such as your father or mother with diabetes, then there is no doubt that your body must also carry the gene for diabetes, and your chances of having diabetes are significantly higher than normal. Therefore, if you have diabetes in your family, you should pay attention before you get pregnant and have your blood sugar checked in time for early detection of diabetes, and if you are already pregnant, you should also be screened for gestational diabetes and pay attention to monitoring your blood sugar during pregnancy for early detection of gestational diabetes.