For being fat couples, the word preparation for pregnancy should make them feel distressed, because obesity, the impact on fertility function, is much greater than you think. 1, obese male fertility is low According to research studies, obesity does have a certain impact on the fertility of men. Excessive obesity will affect the secretion and metabolism of various hormones in the body, thus affecting the quantity and quality of sperm and reducing male fertility! The risk of low semen volume in obese men is as high as 60%, and the chance of sperm abnormalities is as high as 40%. In addition, obese men have more body fat, body temperature is higher, also not conducive to sperm growth. 2, obesity, affecting women’s natural conception A study said that overweight women’s fertility decreased by 8%, obese people fell up to 18%. To give you a data, about 30% of obese women suffer from polycystic ovary syndrome, and polycystic ovary syndrome is often accompanied by increased androgens, becoming an important cause of female infertility. 3, obesity also affects assisted conception obesity not only affects natural conception, but also may affect egg retrieval, fertilization, embryo implantation and other stages to reduce the success rate of IVF. 4, obesity increases the risk of post-pregnancy obesity may also increase the chance of natural abortion, gestational hypertension, diabetes and other complications during pregnancy. Even the health of the fetus after pregnancy also has a negative impact, such as the probability of giving birth to a huge child will increase. The reason for all this is not to convey negative energy to all the fat people who are preparing for pregnancy. Rather, a more comprehensive understanding of the adverse effects of obesity on pregnancy is necessary to better improve and prepare for it. How to improve the adverse effects of obesity on fertility The bell must be tied, since obesity is the main cause of easy infertility, then the most fundamental solution is also weight loss. Some studies have confirmed that a weight loss of 5% to 10% can successfully lose 30% of visceral fat, which is more conducive to the occurrence of ovulation. 5. Although weight loss metabolic surgery obviously has some therapeutic effect on obese female infertility. However, pregnancy should be avoided within one year after surgery and appropriate contraception should be given. The reason for this is that weight loss is constant for about one year after weight loss surgery, and pregnancy is not recommended when the weight is still unstable.