Does IVF medicine need to be tried many times?
IVF medical treatment is a kind of assisted reproductive technology to help couples who cannot conceive naturally achieve their reproductive aspirations. Although the development of technology has made the success rate of IVF medical treatment continuously improve, it still needs to be tried many times in practice. The following will be elaborated from several aspects.

1. Result of physical differences
Every couple has different physiques, which will affect the results of IVF medical treatment. First, the ovarian function and uterine condition of the woman will affect the implantation and development of the embryo. Some women may have better ovarian function and fully developed follicles, which can successfully obtain multiple eggs for fertilization, thus increasing the choice of embryos. Some women may have underdeveloped follicles and poor egg quality, leading to low embryo implantation rate and pregnancy success rate.
In addition, the quality of the man's sperm will also affect the fertilization and development of the embryo. The low number of sperm, poor vitality, deformity rate and other factors will reduce the quality and implantation rate of embryos.
Therefore, due to the different constitution of each couple, doctors need to carry out individualized treatment plans according to the specific situation, which requires many attempts to find the most suitable plan.
2. The initial scheme may not be successful
IVF medical treatment usually starts from the initial scheme, but not every couple's initial scheme can achieve ideal results. The initial program may include ovulation induction, egg retrieval, fertilization and other steps, but for some couples, due to individual differences or other unknown reasons, the initial program may not be able to successfully obtain high-quality embryos.
At this time, the doctor will adjust and improve according to the specific situation, and try different operation methods or drug treatment schemes. Such a trial process requires time and patience, and may require multiple improvements to find a suitable solution.
3. Limitation on the success rate of embryo transfer
The most critical step in IVF medical treatment is embryo transfer. The high-quality embryos to be obtained will be implanted into the mother's uterus. However, not every embryo can be successfully implanted and developed into a fetus after transplantation.
Implanted embryos may fail to implant due to various factors, such as unsuitable uterine environment, embryo quality problems, etc. Therefore, in order to improve the probability of successful transplantation, it is usually necessary to make multiple attempts to increase the chance of obtaining normal pregnancy.
4. Periodicity of IVF medical treatment
IVF medical treatment is usually a cyclical process, including ovulation induction cycle, egg retrieval cycle, fertilization cycle, etc. The success of each cycle often requires multiple attempts.
Because the physiological mechanism of the human body is complex, a certain cycle may not be the best time for different couples, so it is necessary to try several cycles to find the best time and plan.
Summary
It is a common phenomenon that IVF medical treatment requires many attempts. Physical differences, the failure of the initial scheme, the limitation of the success rate of embryo transfer, and the cyclical characteristics are all reasons for the need for multiple attempts. However, through many attempts, doctors can make adjustments and improvements according to the actual situation of patients, improve the success rate of IVF medical treatment, and realize couples' reproductive aspirations.