In overweight (obese) women, the incidence of certain complications increases during pregnancy. Excessive weight gain during pregnancy may include causes such as excessive calorie nutrition, inactivity and non-exercise, genetic factors. Obese mothers are more likely to have high blood pressure and diabetes during pregnancy.

Increased risks in women who are overweight during pregnancy:

- Obese women with ultrasound is more difficult to evaluate the baby, the image worsens.
- It is difficult to make interventions such as amniocentesis because the fat thickness in abdominal skin is high.
- Obese people are less likely to have normal progression of labor, and therefore the possibility of cesarean section increases.
- Obese women have a higher incidence of high blood pressure and preeclampsia during pregnancy.
- It is determined that the babies of the obese mothers are also overweight during pregnancy. Birth may be difficult because the baby is large.
- Obese mothers have a higher risk of becoming obese in the later life of their babies.
- As in every surgery, obese women become more difficult to recover and return to normal after cesarean section.
- Overweight women are more at risk of miscarriage.
- The risk of premature and premature births is increased.
- Urinary tract infections are more common in obese pregnant women.
- Breastfeeding problems are more common in obese mothers.
- Neural tube defects (spina bifida, back opening) are more common in the baby.
- The risk of trauma during the birth of the baby is increased.
- Obesity mothers are more frequent in neonatal intensive care unit and the risk of death is higher in newborn period.

In order to avoid the above-mentioned risks of obesity and overweight during pregnancy, measures such as giving excess weight before planning a pregnancy, avoiding as much calories and inactivity as necessary during exercise should be taken. It is useful to weigh frequently to check how much weight has been gained during pregnancy.

The total amount of weight that a woman should receive during pregnancy is as follows. Here is the weight range that a woman should take according to her Body Mass Index (MBI). The BMI value can be obtained simply by dividing the weight by the square meter of the neck (kg / m2). For example, the BMI of a woman who is 160 cm tall and weighs 65 kilos is calculated with the formula 65 / (1.6x1.6), ie 25.3.

- Total recommended weight gain for pregnant women with a BMI of less than 20: 12.6 - 28 kilograms.
- The recommended weight to be taken during pregnancy for normal weight women with BMI values ​​between 20-25: 11.5 to 16 kilograms
- Total weight recommended in pregnancy for overweight women whose BMI is between 26-29: 7 to 11.5 kilograms
- The recommended BMI for women who are overweight (obese) with a BMI value of more than 30 or dafa: total weight: up to 7 kilograms.