Women who smoked more than 10 cigarettes per day, the chances of getting pregnant with IVF program (IVF) are significantly down, and in case of pregnancy in these patients more frequently observed multiple pregnancy. Scientists believe the negative effects of smoking not only for yourself an egg, but also on the wall of a woman's uterus. The study involved 700 patients from a clinic for the treatment of infertility. Women participants were divided into two groups. The first group consisted of "heavy smokers" – more than 10 cigarettes per day, the second consisted of a non-smoking patients.
All study participants were nonsmokers husbands. Eggs used for IVF were collected from non-smoking donors. According to our data, IVF has helped smokers is much worse – a successful treatment outcome was equal to 34.1%. In the second group the success rate was 52.2%. Moreover, the "smoking" group observed a high number of complications during pregnancy. The study revealed that the toxic components of cigarette smoke interaction violate the fertilized egg to the uterus and prevent implantation embryo in the uterine wall.