Gestational diabetes is not hereditary and is not usually passed on to the next generation. Gestational diabetes mellitus refers to diabetes mellitus that is first detected or develops during pregnancy, usually pregnancy comes first and diabetes mellitus manifests later. Patients with gestational diabetes have no obvious symptoms, and usually find abnormal elevation of blood glucose during maternity checkups or self-testing of blood glucose, and some pregnant women may experience symptoms such as dry mouth, excessive drinking, excessive urination, and excessive eating. Gestational diabetes is not hereditary, and most pregnant women will find that the condition resolves or disappears after delivery, and is generally not passed on to the next generation. However, the fetus born to a pregnant woman with gestational diabetes may suffer from hypoglycemia, which may cause the baby to be huge. Gestational diabetes patients should pay attention to blood sugar control, reduce the intake of high-sugar foods, and frequently monitor blood sugar changes. Pregnant women with poor blood sugar control can be treated with insulin under the guidance of a doctor.