Quality requirements of IVF for sperm
With the development of science and technology, IVF has become a common way of reproduction. In the process of IVF, sperm quality is one of the most important factors. The requirements of IVF for sperm quality will be described in detail from different aspects.
Number of sperm
The number of sperm is an important indicator of sperm quality. In theory, each ejaculation should contain millions of sperm, and the number of sperm required for IVF is at least 1-2 million.
First, the lack of sperm will affect the combination rate of sperm and eggs. A higher number of sperm can improve the fertilization rate of eggs, thus increasing the success rate of IVF. Secondly, the decrease of sperm number may also lead to the decline of sperm motility. The decrease of sperm may reflect the problems of male reproductive system, such as testicular dysfunction, vas deferens obstruction, etc. Therefore, IVF has certain requirements on the number of sperm to ensure the normal development of embryos.
In addition, it is worth noting that sperm quality is not a simple accumulation of sperm quantity, because quality is more important. High quality sperm is more important than quantity because they have better mobility and fertility.
Sperm morphology
Sperm morphology is also an important consideration in IVF. Normal sperm morphology means that the proportion and structure between head, middle and tail meet normal standards.
An abnormal morphology called malformed sperm may have a negative impact on the success rate of IVF. Abnormal spermatozoa usually have head deformation, tail loss and abnormal central sheath. These abnormal sperm can not normally combine and fertilize eggs, thus reducing the success rate of IVF.
Therefore, for IVF, the normal proportion of sperm morphology is necessary to ensure that the sperm can successfully complete the process of combination and fertilization with the egg.
Sperm motility
Sperm motility is another important indicator of sperm quality. It represents the activity and fertilization ability of sperm in the female reproductive tract.
Highly active sperm can quickly swim near the egg and release sperm genetic material to its egg. The motility of sperm is also related to its ability to reverse and penetrate the egg. Therefore, highly active sperm increases the chance of sperm and egg combination, and improves the success rate of IVF.
Whether the number of sperm is large or small, or whether the sperm morphology is normal or not, if the sperm motility is poor, it will have a negative impact on the success rate of IVF. Therefore, highly active sperm is one of the essential elements in IVF.
Sperm genetic status
The genetic status of sperm is also one of the factors that should be paid attention to in IVF. Some men may carry some genetic diseases, such as single gene genetic diseases, chromosome abnormalities, etc. These genetic diseases may be passed on to offspring through sperm.
Monitoring the genetic status of sperm can help screen men with genetic diseases and reduce the risk of genetic diseases to the next generation. For example, PGD (preimplantation embryo gene diagnosis) technology can detect chromosome abnormalities or single gene mutations in embryonic cells to select healthy embryos for transplantation.
In conclusion, IVF has high requirements for sperm quality, including sperm quantity, sperm morphology, sperm motility and sperm genetic status. These requirements are set up to improve the success rate of IVF and the birth rate of healthy offspring.
summary
IVF has strict requirements on sperm quality, including sperm quantity, sperm morphology, sperm motility and sperm genetic status. Only high-quality sperm can increase the success rate of IVF and reduce the risk of genetic diseases to offspring. Therefore, before choosing a hospital for IVF, it is necessary to ensure that the hospital has relevant sperm quality testing technology and high-quality sperm bank to ensure the success and health of IVF.
