How high is the chance of in vitro fertilization?

The success probability of in vitro fertilization is usually between 30% and 50%, which is related to factors such as female age, embryo quality, and uterine environment. Clinical data shows that the success rate of a single cycle for women under 35 years old can reach 40%-50%, and may drop to less than 20% for women over 40 years old.

The core factor that affects the probability of IVF is the woman's age. Women aged 25-30 have better ovarian function and higher egg quality, and the probability of embryo implantation can reach 45%-55%. The success rate remains at about 40% between the ages of 30 and 35. After the age of 35, the ovarian reserve function begins to decline significantly. The success rate is about 30% between the ages of 38 and 40. It may only be 15%-25% over the age of 40. In addition to age, high-quality embryo transfer can increase the success rate by 10%-15%. Endometrial thickness is 8-14 mm, which is more conducive to embryo implantation. Laboratory technical conditions will also affect the results. Blastocyst culture technology can increase the success rate by 5%-10%.

It is recommended that couples preparing for pregnancy conduct fertility assessment in advance, and women over the age of 35 may consider preimplantation genetic screening technology. During treatment, you need to maintain a regular schedule, avoid smoking and drinking, and supplement folic acid and vitamin D appropriately. If the first cycle is unsuccessful, you can try again after 1-2 menstrual cycles. Most fertility centers will adjust the ovulation induction program to improve the success rate of subsequent cycles. Pay attention to psychological stress management, as excessive anxiety may affect pregnancy outcomes through neuroendocrine mechanisms.