The causes of gestational diabetes mellitus are as follows. On the one hand, the placenta secretes certain hormones during pregnancy, which may increase insulin resistance and reduce the body’s sensitivity to insulin, thereby leading to elevated blood glucose levels. On the other hand, an unhealthy dietary structure during pregnancy—such as excessive intake of high-sugar and high-fat foods—as well as insufficient physical activity, can also induce gestational diabetes mellitus.
In short, the causes of gestational diabetes mellitus can be simply summarized as the hormonal effects during pregnancy, as well as conventional risk factors mainly related to diet and lack of exercise. Pregnant women should receive proper prenatal check-ups and acquire necessary knowledge, which can help prevent gestational diabetes mellitus to a certain extent.