Why does IVF abortion happen?
IVF refers to the natural loss of embryos that cannot continue to develop in the uterus during the process of artificial assisted reproduction. Despite the continuous development and progress of IVF technology, abortion is still an unavoidable risk. The reasons for IVF abortion will be described in detail in terms of embryo quality, uterine environment, hormone level and implantation technology.
Embryo quality
Embryo quality is one of the important factors affecting IVF abortion. The quality of an embryo is directly related to its ability to continue developing in the womb. Sometimes, there are some gene abnormalities in the process of fertilization, which make the embryo unable to develop normally and eventually lead to abortion. In addition, in the process of IVF, if the cell division of the embryo is uneven or some abnormalities occur in the cell, the risk of embryo abortion will also increase.
In addition, age is also one of the factors affecting embryo quality. The quality of embryos conceived by women over 35 years of age usually declines, leading to an increase in the probability of IVF abortion.
Uterine environment
The uterine environment is crucial for the successful implantation and development of embryos. The thickness and smoothness of the endometrium are crucial for embryo implantation. If the endometrium is too thin, the embryo is difficult to colonize; If the endometrium is too thick or not smooth, the chances of embryo embedding will also be affected. In addition, uterine structural abnormalities such as hysteromyoma and endometriosis will also increase the risk of IVF abortion.
Hormone levels
Hormones play an important role in the regulation of IVF. Abnormal changes in hormone levels may affect the probability of successful pregnancy. For example, low ovarian function may lead to incomplete follicular development or abnormal ovulation function, thus affecting embryo quality and implantation process. In addition, luteal insufficiency is also a hormone abnormality, which will lead to the endometrium not suitable for embryo implantation.
In addition, abnormal thyroid function and elevated prolactin level will also increase the risk of IVF abortion.
Implantation technique
Implantation technology refers to the technology used in the process of implanting IVF embryos into the uterus. Improper technical operation may lead to miscarriage. For example, excessive freezing and thawing of embryos, early or late implantation of embryos, improper selection of implantation location, etc. may lead to IVF abortion. Therefore, doctors' technical level and experience are crucial to the probability of successful pregnancy.
To sum up, IVF abortion is a complex problem, which is affected by multiple factors. Embryo quality, uterine environment, hormone level and implantation technology are all important factors affecting IVF abortion. Although the rapid progress of medical technology makes the IVF technology more and more mature, the risk of abortion still exists. Future research and technological progress will further reduce the risk of IVF abortion and bring good news to more couples who want to have healthy babies.
