There are several aspects of hyperglycemia in pregnancy, comprising pre-existing type 1 or type 2 diabetes in pregnancy and gestational diabetes. These conditions are rising in incidence and are associated with an increased likelihood of adverse perinatal outcomes such as macrosomia, birth injuries, and hypoglycemia.

Moreover, women with diabetes in pregnancy suffer from a greater risk of preterm delivery, complications in delivery, and unplanned caesarean sections. Endocrine disorders related to glucose dysmetabolism such as Polycystic Ovary Syndrome are the main risk factors for developing gestational diabetes. To date, the role of prevention represents a critical aspect through the detection of women at increased risk of gestational diabetes as well as those with unrecognized diabetes in pregnancy.

In this Special Issue, we aim to highlight new approaches and strategies and to provide summaries of the current evidence in addition to future directions in the topic of diabetes in pregnancy. Original research and review articles are welcome.

Potential topics include but are not limited to the following:

• Prevention of gestational diabetes
• New tools to investigate the effects of gestational diabetes
• Glucose dysmetabolism and pregnancy outcomes
• Fetal and maternal outcomes in gestational diabetes
• Future approaches to hyperglycemia in pregnancy