What are the reasons for unsuccessful blastocyst transfer?

According to the survey, the number of infertile women in my country is increasing every year. This phenomenon has led to IVF becoming a concern for many people. This method allows families to have children smoothly, but in order to increase the chance of conception, it is necessary to ensure that every detail is understood, otherwise failure will cause greater psychological harm to the patient. So what are the reasons for the failure of blastocyst transplantation?

First, what are the reasons for unsuccessful blastocyst transfer? Failure of ovulation induction. Ovulation induction refers to the use of drugs to encourage women to release more eggs at one time. It is a key part of the prerequisite preparation for in vitro fertilization. If there is a problem with ovulation, it will seriously affect the subsequent process. As women age, their ovarian reserve will deteriorate, the number of follicles will decrease, and the quality will decline. Age is an important factor in the success of ovulation induction. For some women with premature ovarian failure, their success rate will be relatively low due to their low innate reserves. In addition, women with polycystic ovary syndrome are prone to ovarian overstimulation during the ovulation induction process, which may cause physical discomfort. For healthy women, if the timing of ovulation induction is not chosen well, such as when they are sick, overly nervous, or overly tired, it can easily lead to ovulation induction failure.

Second, egg retrieval failed. Egg retrieval failure means that after a woman has ovulation induction, she has a certain number of follicles, but the oocytes in the follicles are not successfully extracted, but this probability is only one in a thousand. It is worth noting that empty follicle syndrome can lead to egg retrieval failure. Experts in the nest explained that the so-called empty follicle syndrome refers to the absence of eggs in the follicles. The incidence rate is about 0.5%, and the cause is still unknown. However, a failed egg retrieval does not mean a complete failure. Some patients fail in the first egg retrieval, but can successfully retrieve the eggs after a delay of a few hours. Therefore, if the egg retrieval fails for the first time, please keep calm and do not worry too much.

What are the reasons for unsuccessful blastocyst transfer? Failure to form a fertilized egg. After the egg is retrieved, it must combine with sperm to form a fertilized egg. This link is related to the quality of eggs and sperm, which is difficult to predict in advance, and the probability of an accident is about 3%. Experts in the nest remind that before doing in vitro fertilization, we cannot ignore the inspection of sperm quality. Failure of embryo formation. The fertilized egg develops into an embryo, and qualified embryos will be transplanted into the mother's body. If the quality of the fertilized egg is poor, it will affect the formation of the embryo, and there is a certain risk of failure.