"A study that examined miscarriage type and fetal karyotypes in RMC women found that very early pregnancy losses (anembryonic and embryonic loss with embryo <3 mm) are more likely to be karyotypically normal, and embryonic miscarriage (with embryo ≥3 mm) and fetal demise to be karyotypically more likely abnormal.36 It is possible to speculate from our study findings that obesity is likely to be associated with an increased risk of first-trimester miscarriages and, in particular, increases the risk of miscarriage of anembryonic pregnancies, which are likely to be karyotypically normal. However, it remains uncertain whether BMI may have any significant effect on the embryo loss pattern, and further well‐controlled studies are required to analyse their association."