What factors affect the success rate of IVF?
Test tube baby is a kind of assisted reproductive technology. Many infertile patients have realized their reproductive dreams through this method. However, the success rate of IVF is not fixed and is affected by many factors. The following will be detailed from four aspects: embryo quality, female age, basic diseases and hospital technical level.
Embryo quality
Embryo quality is one of the important factors in the success rate of IVF. In the process of IVF, doctors will select high-quality embryos to transfer to the female uterus to increase the probability of successful pregnancy. Embryo quality mainly depends on the following aspects.
First, the number of fertilized eggs. Usually, in vitro fertilization will use multiple follicle stimulation to obtain more fertilized eggs. If fewer fertilized eggs are obtained, the chances of selecting high-quality embryos will be correspondingly reduced.
Secondly, the morphological structure of the embryo. The number and speed of embryonic cell division are important indicators to evaluate its quality. Normal embryos usually have uniform and symmetrical cell division morphology.
Finally, the chromosome heredity of the embryo. Abnormal chromosome structure or quantity will affect the normal development of embryos, thus affecting the success rate of IVF.
Female age
Female age is one of the key factors in the success rate of IVF. With the growth of age, the number and quality of female eggs gradually decline, leading to a decline in fertility. Statistics show that the success rate of IVF for women over 35 years old is significantly lower than that of young women. This is because the female ovarian function and egg quality decline with age, resulting in a reduction in the formation rate and implantation rate of fertilized eggs.
In addition, female age also affects the risk of chromosomal abnormalities in embryos. The probability of chromosomal abnormalities increases with age, which will lead to increased risk of abnormal embryonic development and spontaneous abortion.
Basic diseases
Having some basic diseases will also affect the success rate of IVF. For example, endometriosis, polycystic ovary syndrome and other diseases will affect the internal environment of the uterus and egg quality, thus affecting embryo implantation and development. In addition, in patients with blocked or abnormal fallopian tubes, the fertilized eggs cannot enter the uterine cavity normally, resulting in a low success rate of IVF.
Male patients with reproductive system diseases or abnormal sperm quality will also affect the success rate of IVF. The number, motility and morphology of sperm are directly related to the formation of fertilized eggs and the development of embryos.
Hospital technical level
The technical level and equipment conditions of the hospital are also one of the factors affecting the success rate of IVF. IVF technology requires doctors' operating skills and experience, and requires precise operation and good team cooperation. Excellent hospitals can provide high-quality IVF services, including professional technical support for egg collection, fertilization, embryo culture and embryo transfer.
In addition, the hospital equipment conditions and environment will also have an impact on the success rate of IVF. Advanced laboratory equipment and high-quality culture environment can provide better conditions for embryo culture, thus improving the success rate of IVF.
To sum up, the success rate of IVF is affected by many factors, such as embryo quality, female age, basic diseases and hospital technical level. When choosing IVF technology, patients should take these factors into consideration and choose the right time and hospital for treatment, so as to improve the success rate and realize their reproductive dreams.
