Requirements of IVF on sperm quality
IVF is an assisted reproductive technology, which helps couples who cannot conceive naturally to realize their reproductive dreams through artificial insemination. The success of IVF depends largely on the quality of sperm. So, what are the requirements of IVF for sperm quality? This article will elaborate from four aspects of sperm quantity, motility, morphology and genetic quality.
Number of sperm
The number of sperm is an important indicator to evaluate male fertility, and is also one of the key factors in the success rate of IVF. Generally, there should be more than 150 million sperm per milliliter of semen, or it will affect the smooth process of fertilization. If the number of sperm in semen is low, doctors can use sperm extraction technology to extract sperm directly from testes or seminal vesicles to increase the possibility of fertilization.
In addition, the motility of sperm is also closely related to the number of sperm. Healthy sperm should have good swimming ability to enter the egg smoothly and complete the fertilization process.
Sperm motility
Sperm vitality refers to the ability of sperm to remain active in the external environment. The sperm with weak vitality is easy to lose its vitality in the process of being transported to the vicinity of the egg, thus affecting the success rate of fertilization. Therefore, IVF requires high sperm motility.
Doctors can determine the vitality level of sperm by evaluating the vitality indicators in semen samples, such as the swing frequency and forward speed of sperm. If sperm vitality is insufficient, doctors may recommend using special culture medium or auxiliary technology to improve sperm vitality, so as to improve the success rate of IVF.
Sperm morphology
The shape of sperm refers to the appearance and structure of sperm, including the shape of head, neck and tail. Normal sperm morphology is crucial to the fertilization process, because only normal sperm can successfully combine with the egg. The proportion of normal sperm should exceed 4% before it is considered ideal.
When sperm morphology is abnormal, it can affect the combination of sperm and egg and the quality of fertilization results. If one or both couples have abnormal sperm morphology, sperm morphology selection technology can be considered to improve the success rate of IVF by screening normal sperm.
Sperm genetic quality
The genetic quality of sperm refers to gene mutation and chromosome abnormality in sperm. To some extent, this is related to male infertility and genetic diseases. In the process of IVF, if the man has obvious gene mutation or chromosome abnormality, the embryo may be seriously affected, or even cannot be successfully implanted into the uterus. Therefore, before IVF, doctors will conduct gene testing on the male sperm to assess the genetic quality of sperm and provide reference for subsequent operations.
In conclusion, IVF has high requirements for sperm quality, including sperm quantity, vitality, morphology and genetic quality. The quality of sperm will directly affect the success rate of IVF. Therefore, in the process of IVF, doctors will take appropriate auxiliary technologies and strategies according to the sperm quality to improve the success rate and pregnancy quality of IVF.
Conclusion: IVF has strict requirements on sperm quality, including quantity, vitality, morphology and genetic quality. The quality of sperm directly affects the success rate of IVF. Doctors use sperm extraction technology, special culture medium and sperm morphology selection technology to optimize sperm quality and improve the success rate. In addition, genetic testing of sperm genetic quality is also an important step in the process of IVF. The success of IVF depends not only on the level of medical technology, but also on the appropriate sperm quality.
