Gestational diabetes is a type of diabetes that only occurs during pregnancy. It occurs when the body cannot produce enough insulin to regulate blood sugar levels. This happens because, during pregnancy, the placenta releases hormones that make it harder for insulin to be used. This imbalance can lead to high blood glucose levels, a condition called hyperglycemia ( Sanofi Diabetes )( Ameli ).Why is it important? Untreated gestational diabetes can pose risks to both mother and baby, but proper management helps prevent complications.How is it diagnosed? Between the 24th and 28th week of pregnancy, a blood sugar test is usually offered to all pregnant women to detect gestational diabetes.