For embryos, if the thickness of the endometrium in the female uterus exceeds 15mm, embryo transfer is generally not recommended because in IVF, the thicker the endometrium, the more difficult it is to succeed. As for the upper limit of thickness, there is currently no data to determine, so it is generally believed that the thickness is between 8-15. If the thickness reaches 15mm, a scraper inspection should be performed to reduce the impact on transplantation. Usually, a thickness between 7-15 millimeters is the most suitable. There is evidence to suggest that an inner layer exceeding 7.5mm has no effect on implantation. That is, as long as the thickness exceeds 7.5mm during transplantation, the success rate of implantation is the same as that of normal pregnancy, which is about 60% -65%.

Is the 15mm thick endometrium normal?

The thickness of the endometrium is around 15mm, which is abnormal in clinical practice. Even during the upcoming period, the thickness of the endometrium should be around 11-12mm and not exceed 15mm. Regardless of the period of time, the thickness of the endometrium is about 15mm, which is abnormal. The following factors should be considered: 1. The continuous increase of estrogen in the body leads to the continuous growth of the endometrium;, 2. It may be a proliferative disease of the endometrium, leading to endometrial thickening; In response to the above situation, it is recommended to go to the hospital for an endocrine examination. Pathological analysis is also required to determine whether there are abnormalities, and then periodic medication adjustments are carried out based on the pathological results.

If the endometrium is thin and less than 6mm thick, but the embryo quality is good, the success rate can still reach over 30%, and even 4mm thick endometrium can be implanted smoothly. Usually, the thickness of the endometrium is around 15mm, which can affect the normal onset of menstruation and lead to difficulty ovulation, so the probability of conception is not ideal.

To avoid affecting normal pregnancy, it is recommended that female friends identify the cause of endometrial thickening as soon as possible. Excessive thickness or thickness of the endometrium is detrimental to pregnancy, but it cannot determine the outcome of pregnancy. Relative thickness, endometrial classification, and presence or absence of adhesions are more important for embryo implantation.

Generally speaking, having an appropriately thick endometrium on the day of transplantation is more conducive to embryo implantation. Therefore, embryo transfer is not recommended when the thickness of the endometrium is above 15mm. The main reason is that the endometrium is too thick, which is unfavorable for embryo implantation and development, and even implantation may result in fetal arrest. Therefore, it is recommended that these patients do not blindly undergo embryo transfer. However, as doctors have a better understanding and expertise in your physical condition, it is recommended that everyone follow the doctor's advice for IVF.