Pregnancy and obesity.

Obesity has become a worldwide epidemic: it is associated with increased rate of infertility and with many pregnancy complications. Moreover, it is associated with gestational diabetes mellitus, which increases the risk of these complications. As the prevalence of obesity is increasing, so is the number of women in the reproductive age who are overweight and obese. This article addresses issues concerning pregravid obesity and weight gain during pregnancy and their implication on gestational diabetes and pregnancy outcome.