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How many days after transplantation can we confirm whether IVF embryos have been successfully implanted?

 How many days after transplantation can we confirm whether IVF embryos have been successfully implanted?



How many days after IVF embryo transfer can we confirm whether the implantation is successful?

IVF technology is an important assisted reproductive technology, which helps couples who cannot conceive naturally realize their reproductive dreams by transplanting the fertilized eggs into the mother's uterus after in vitro culture. However, the successful implantation of embryos after transplantation is not achieved overnight, and it needs some time to confirm. This article will elaborate from four aspects: embryo development, technical progress, common inspection methods and hospital practice.

Key period of embryonic development

The third to fifth day after embryo transfer is the implantation window period. This period is the critical moment of the interaction between the internal and external environment of the embryo, which determines whether the embryo can be successfully implanted. During this period, the embryo begins to form a blastocyst, and the cells in the embryo begin to differentiate into inner cell clusters and outer cell clusters. The inner cell mass will develop into the placenta, and the outer cell mass will provide a supporting environment for the embryo.

Progress in IVF technology

With the progress of science and technology, IVF technology has also been constantly improved and perfected. In traditional IVF technology, embryos will be recovered on the second day of in vitro culture, and then transferred back to the uterus on the third to fifth days. However, in recent years, frozen embryo transfer has been used more and more widely. The advantage of frozen embryo transfer is that it can allow women to regulate hormones, reduce ovarian stimulation, and improve the success rate of embryo transfer. Frozen embryos are usually thawed and transferred on the 21st day of the transfer cycle, and then most patients are tested for serum HCG (human chorionic gonadotropin) 14 days later to confirm whether the implantation is successful.

Common inspection means

In addition to serum HCG detection, there are other common inspection methods that can be used to confirm whether IVF embryos are successfully implanted. These include urine HCG detection, ultrasound examination and endometrial biopsy. Urine HCG detection is to judge whether pregnancy is based on the HCG content in urine. Ultrasonography is to determine whether pregnancy occurs by using ultrasonic equipment to observe the position and shape of embryos in the uterus. Endometrial biopsy is a kind of surgical examination. By taking out endometrial tissue for pathological examination, we can judge whether the endometrium has implantation conditions.

Hospital practice: Hong Kong Renji Hospital

Hong Kong Yan Chai Hospital is a highly respected IVF specialist hospital. The hospital has rich practical experience in IVF technology and is committed to providing comprehensive assisted reproductive technology services for infertile couples. In Hong Kong Renji Hospital, serum HCG test is usually carried out 14 days after embryo transfer to confirm whether IVF embryos are successfully implanted. To sum up, it will take some time to confirm whether IVF embryo transfer is successful. The implantation window period of embryo development is a critical period, and the technology is constantly improved. Common inspection methods such as serum HCG detection, urine HCG detection, ultrasound and endometrial biopsy can help us understand whether the embryo is successfully implanted. As a professional IVF hospital, Hong Kong Renji Hospital not only provides comprehensive technical services, but also provides hope for infertile couples.
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