Obese Women are Less Likely to Get Pregnant
Obese women have decreased IVF pregnancy rates. When compared to women with a BMI of 18.5- 24.9 kg/m2, the age-adjusted probabilities of having a live birth are lowered by 37% (BMI, 30.0- 34.9 kg/m2), 61% (BMI, 35.0-39.9 kg/m2), and 68% (BMI, >40.0 kg/m2).
Obesity Affects Eggs and Embryos
Obese women had worse egg quality, fertilisation rate, and embryo quality. This suggests that extracted eggs may result in an unsuccessful IVF cycle.
Obesity Affects the Uterine Lining
Obese women have a less responsive uterine lining. This has been investigated in donation egg recipients as well as surrogate cycles, where obese women have a reduced live birth rate.
Higher Risk of Pregnancy Loss is Linked to Obesity
When compared to normal weight women, obesity is associated with a 31% increase in miscarriage.
Pregnancy is Riskier for Obese Mothers
Obese women have lower pregnancy outcomes. Obese women are more likely to have diabetes, high blood pressure, preeclampsia, preterm delivery, stillbirth, Cesarean or artificial delivery, labor difficulties (shoulder dystocia), fetal distress, early neonatal death, and newborns that are tiny for their gestational age.
Greater Risk of Birth Defects
Babies born to obese moms have an increased chance of birth abnormalities. These include spine deformities, heart problems, cleft lip and palate, and so on.