Requirements of IVF for embryos
IVF is a kind of assisted reproduction method that combines sperm and egg in the laboratory, cultivates them into embryos, and then transfers the embryos back to the mother through IVF technology. In the process of IVF, the quality and selection of embryos are very important. The requirements of IVF for embryos are described in the following four aspects.
Genetic health of embryos
The genetic health of embryos is one of the key factors for the success of IVF. Through the preferred embryo genetic diagnosis technology, doctors can detect whether the embryo carries genetic diseases or chromosome abnormalities. These abnormalities may lead to decreased viability of embryos, termination of pregnancy or decreased quality of life. Therefore, IVF hospitals generally require embryos to be genetically healthy to increase the success rate and reduce the risk of genetic diseases.
First, doctors will screen the donated eggs and sperm to ensure that the carriers have no genetic diseases. Secondly, doctors can detect whether embryos carry chromosomal abnormalities through embryonic biology theory and technology. Only embryos that pass the genetic health screening can be selected for transfer.
Quantity and quality of embryos
The number and quality of embryos are directly related to the success rate of IVF. During in vitro fertilization, not all fertilized eggs can successfully develop into embryos. Therefore, doctors will evaluate the quantity and quality of embryos according to the quality of eggs and sperm and the performance of fertilization process.
In the process of IVF, doctors usually choose well developed and normal shaped embryos for transplantation. If more than one embryo meets the requirements, the doctor can select single embryo or multiple embryo transfer according to the patient's situation.
Development stage of embryo
The stage of embryo development also has an important impact on the success rate of IVF. Generally, embryos need to undergo several days of development in the culture medium to form different development stages, such as fertilized egg, 2-cell stage, 8-cell stage, etc.
According to the selection of hospitals and the situation of patients, embryos with good development and normal morphology are usually selected for transplantation. The higher the embryo development stage, the higher the success rate. Therefore, the hospital will select the appropriate embryonic development stage for transplantation according to the patient's situation.
Feasibility assessment of embryos
The feasibility assessment of embryos is an important part of IVF. Through embryo quality assessment and embryo selection technology, doctors can determine which embryos have high success potential.
The embryo quality assessment is to judge the quality of the embryo by observing its appearance, cell division and cell morphology. Embryo selection technology can assess the genetic health of embryos by detecting the chromosome number, chromosome structure and gene abnormalities of embryos.
Through the feasibility assessment of embryos, doctors can select the most potential embryos for patients to transfer, and improve the success rate of IVF.
summary
The requirements of IVF for embryos mainly include genetic health, quantity and quality, development stage and feasibility assessment of embryos. Embryos should be strictly screened to ensure genetic health. At the same time, the quantity and quality are also key factors to determine the success rate. The development stage and feasibility assessment of embryos can help doctors select the most promising embryos for transplantation. Reasonable embryo selection and evaluation can improve the success rate of IVF and bring good news to infertile patients.
