Is hcg value of test tube baby related to twin pregnancy?

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Is there any relationship between the hCG value of IVF and twin pregnancy?

In vitro fertilization (IVF) is used to assist pregnancy, and hCG (human chorionic gonadotropin) is a hormone produced after the implantation of fertilized eggs. Many people speculate whether the hCG value of IVF is related to twin pregnancy. In the following article, we will elaborate on this issue from the aspects of hormone peak, twin probability, hCG level and hospital practice.

Hormone peak

HCG will increase continuously in the body after implantation of the fertilized egg, reaching a peak, and then gradually decline. Generally speaking, if only one embryo of IVF is successfully implanted, the peak value of hCG will be relatively low, usually not more than 1000 IU/L. However, if twins are successfully implanted, the peak value of hCG may be higher, exceeding 1000 IU/L or even higher. Therefore, to some extent, the hCG value of IVF is indeed related to twin pregnancy.

However, it should be noted that the level of hCG value is not 100% to determine whether it is a twin. Some women with single pregnancy may also have higher hCG values, which is related to individual differences and other factors.

Twins probability

Compared with natural pregnancy, IVF has a higher probability of twins. This is because in the process of IVF, doctors usually transplant multiple fertilized eggs into the uterus, increasing the chances of successful implantation. Therefore, the twin probability of IVF is relatively high, and is not directly related to the hCG value.

HCG level

In addition to the hormone peak, the growth rate of hCG level can also indirectly reflect the possible twin pregnancy. Generally, the hCG level in women will double every two days. If the hCG level increases rapidly, it may mean that twins are more likely to become pregnant.

However, it should also be noted that not all twin pregnancies have a particularly significant increase in hCG levels. Individual differences and other factors will also affect the growth rate of hCG level, so we cannot determine whether it is twin pregnancy only by hCG level.

Hospital Practice

Each hospital will have different experiences and methods in the monitoring of hCG in IVF women. Some hospitals may associate the hCG value with twin pregnancy, while others pay more attention to the detection of other indicators. Therefore, the practice of the hospital is also an important factor influencing the determination of the relationship between hCG value and twin pregnancy.

To sum up, in IVF, hCG value is related to twin pregnancy to some extent, but it is not an absolute indicator. In addition to the hCG value, factors such as hormone peak value, the growth rate of hCG level and hospital practice need to be comprehensively considered. Most importantly, no matter whether the pregnancy is twins or not, ensuring the health and safety of pregnancy is the most important goal.