Gestational diabetes is the type of diabetes seen in some women only during pregnancy. Some pregnant women develop this form of diabetes because of hormonal changes seen during pregnancy. These hormonal changes alter the insulin activity leading to hyperglycaemia finally causing diabetes. Gestational diabetes may subside after the delivery of the child. However, the condition may put some women at risk of developing diabetes in the future. Treatment options include oral hypoglycaemic agents, insulin therapy, and lifestyle modifications.