Recurrent pregnancy loss and obesity

• Obesity is an independent risk factor for further miscarriage in patients with recurrent pregnancy loss (RPL).
• Obesity is associated with euploid miscarriage.
• Subjects with a history of RPL were found to be at a higher risk of cardiovascular disease.
• No study has examined the effect of weight loss on the prevention of further miscarriage.

Recurrent pregnancy loss (RPL) was defined as two or more miscarriages. Antiphospholipid syndrome, uterine anomalies, and parental chromosomal abnormalities, particularly translocation and abnormal embryonic karyotype, are identifiable causes of RPL. Obesity may increase the risk of sporadic miscarriage in pregnancies conceived spontaneously. Obesity with body mass index (BMI) > 30 kg/m2 is an independent risk factor for further miscarriage with odds ratio 1.7–3.5 in patients with early RPL.Obesity is associated with euploid miscarriage. Unexplained RPL with euploid embryo might be a common disease caused by both polymorphisms of multiple susceptibility genes and lifestyle factors such as women's age, obesity, and smoking. Patients with a history of RPL were found to have a higher risk of cardiovascular disease, celiac disease, gastric ulcer, gastritis, and atopic dermatitis. No study has examined the effect of weight loss on the prevention of further miscarriage in patients with RPL.