This is an automatically translated article.
For a successful pregnancy, in addition to factors such as good quality eggs, healthy embryos, the thickness of the uterine lining is also one of the important factors that play a key role in the successful embryo implantation process. success.
1. What is the normal thickness of the uterine lining?
The normal thickness of the uterine lining changes frequently throughout a woman's life, from childhood, through sexual maturity, during pregnancy, and after menopause. terrible.
According to the Radiological Society of North America, the lining of the uterus is at its thinnest during menstruation, when it's usually about 2 to 4 mm thick. The first half of the proliferative phase begins around the 6th to 14th day of the menstrual period, or the period between the end of menstruation, when bleeding stops, and before ovulation. At these stages, the lining of the uterus begins to thicken and can measure 5 to 7 mm. As the cycle progresses and ovulation approaches, the lining of the uterus grows thicker, up to about 11 mm. About 14 days into the menstrual cycle, a sudden increase in estrogen in the middle of the cycle triggers the release of an egg. During this period, the thickness of the uterine lining is greatest and can reach 16 mm. The thickness of the lining of the uterus plays a very important role in pregnancy. Fertility experts believe that the thickness of the lining of the uterus is related to the likelihood of a healthy, full-term pregnancy when the uterine lining is neither too thin nor too thick. This allows the embryo to implant successfully and receive all the nutrients it needs.
Niêm mạc tử cung có ảnh hưởng lớn đến thai nhi
2. Method to evaluate the thickness of the uterine lining
Endometrial thickness measurement (EMT) is an ultrasound technique that is easy to perform at many medical facilities. It is a reliable tool for evaluating the uterine lining even in patients with ovarian hyperstimulation.
3. How thick is the uterine lining for embryo transfer?
Most scientists agree that if EMT is ≥ 8 mm, embryo implantation is better.
There are many causes of thin uterine lining such as uterine adhesions. Adhesions of the uterus need to be detected with a hysterosalpingogram before performing IVF. In cases of non-adherence of the uterine cavity, experts believe that it may be due to the failure of the functional layer of the uterine lining to develop, leading to a thin lining.
Dính buồng tử cung là nguyên nhân dẫn đến lớp niêm mạc tử cung mỏng
4. How many days does it take to transfer embryos?
Before embryo transfer, the woman will be prescribed by the doctor to use some hormonal drugs such as estrogen at the first day of the menstrual cycle. Next, the doctor will monitor the uterine lining until it reaches the thickness of EMT ≥ 8 mm, then the embryo transfer will begin.
The ideal thickness for embryo transfer is between 8 and 14 mm, and outside this range is not the best time to transfer embryos. However, depending on each specific case, the doctor will advise on the most appropriate time for embryo transfer.
Vinmec Fertility Center is the leading modern center in Vietnam, built and applied a treatment process that coordinates comprehensive examination, combining both male and female obstetrics and gynecology to offer the optimal plan. for each patient case.
Center gathers a team of leading experts in the field of obstetrics and gynecology in the country and abroad, trained at leading centers in the world such as in the US, Singapore, Japan, Australia and Support centers famous breed in the world. With a high level of expertise and extensive experience, Vinmec's team of experts is capable of synchronously and comprehensively deploying today's most advanced assisted reproductive techniques, helping to realize fulfill the parenting dream of hundreds of families across Vietnam.
To perform embryo transfer at Vinmec International General Hospital, customers can directly go to Vinmec Health system nationwide for examination or contact the hotline here for support.
