How many days can test tube babies be implanted?
IVF means that the fertilized egg is cultivated to the embryonic stage through artificial insemination or assisted reproduction technology, and then implanted into the mother's uterus for development. Implantation is the process of embryo implantation into the inner wall of the uterus, and is the key link for IVF to successfully develop into a baby. Although each patient's constitution is different, IVF can be successfully implanted in a few days.
Embryonic development after fertilization
After IVF, the fertilized eggs will be cultured in vitro and then form embryos. Usually, on the first day after fertilization, the egg and sperm fuse into a fertilized egg, and then continue to divide into multiple cells. The next day, the fertilized egg continued to divide and form a blastocyst. On the third day, the number of cells in the blastocyst continued to increase and began to form two cell layers. From the fourth day to the fifth day, the blastocyst continued to develop into inner and outer cell clusters. From the fifth to the sixth day, the embryo further develops into a blastocyst, ready to be implanted into the mother's uterus.
The whole development process takes about 5 to 6 days. The more cell layers in the embryo, the more complete the development, and the higher the success rate.
Embryo transfer and implantation
Embryo transfer is a key step for IVF implantation. Generally speaking, after the embryo develops to the blastocyst stage, the doctor will transplant the blastocyst into the patient's uterus at a specific time.
Embryo transfer is usually performed via vagina. The doctor will insert the blastocyst into the uterus with a catheter or intubation, and then fix it on the inner wall of the uterus. The whole process usually does not require anesthesia, and the patient only needs to keep relaxed.
After embryo transfer, blastocysts need some time to be successfully implanted. Generally speaking, blastocysts can be implanted within two days after implantation into the uterus. When the blastocyst is successfully implanted into the inner wall of the uterus and implanted, it can begin to develop into a baby.
Hospital case: Peking Union Medical College Hospital
Peking Union Medical College Hospital is a famous general hospital in China and one of the pioneers in the field of assisted reproductive technology. As one of the earliest hospitals to implement IVF technology in China, Union Medical College Hospital has rich clinical experience and professional team. In this hospital, embryo transfer of test tube babies is usually carried out when the blastocyst develops to the 5th or 6th day, and patients usually need to carry out serum HCG testing on the 11th day after surgery to confirm whether the implantation is successful.
Summary
IVF usually needs to go through 5-6 days of embryonic development and embryo transfer after blastocyst stage. Implantation can take place within two days after embryo transfer. However, remember that everyone's situation is unique, and some patients may need longer time to implant. Peking Union Medical College Hospital is a trustworthy medical institution with rich experience and mature technology in the field of IVF, which can provide professional services for patients.
