This blood type is the hardest for women to get pregnant

Pregnancy is a very happy thing for any family, but if a woman cannot get pregnant, it will cause great harm to the family. Some people say that it is difficult for women with certain blood types to get pregnant. Is this true? Let me explain it to you below!

A study in the United States showed that women with type O blood have more difficulty getting pregnant than women with other blood types.

This is mainly because they may secrete more follicle-stimulating hormone. What is this follicle-stimulating hormone? What effects does it have on women's conception? Is it really difficult for women with type O blood to get pregnant? Let's find out.

Does blood type affect the difficulty of conception? O-type women have difficulty getting pregnant

According to a joint study conducted by American scientists, women with type O blood are less likely to conceive than women with other blood types.

The research results found that among 560 women with an average age of under 35, women with type O blood had a lower chance of getting pregnant than women with other blood types, and the group with the highest chance of getting pregnant was women with type A blood.

Experts explain that women with type O blood may secrete more "follicle stimulating hormone", a hormone that inhibits ovarian ovulation. According to their research, women with type O blood secrete more than twice as much follicle-stimulating hormone as women with type A blood. The different secretion amounts of follicle-stimulating hormone in women with different blood types may be determined by genes.

At the same time, the study pointed out that when women are 30-40 years old, the amount of ovulation in their ovaries will decrease. At this time, the more "follicle-stimulating hormone" is secreted, the more difficult it is for the ovaries to ovulate. Therefore, the chance of infertility increases for women with blood type O aged 30-40.

While the effect of blood type on the ease of conception is interesting research, the results still need to be confirmed.

As mentioned earlier, experts have inferred that the reason why O-type women have difficulty getting pregnant is because their hormone content is different from that of other blood types. The most direct reason is "follicle-stimulating hormone." What exactly is this hormone? What effect does it have on female pregnancy?

What is follicle stimulating hormone?

You may be confused about follicle stimulating hormone, so what is follicle stimulating hormone?

Follicle stimulating hormone, if you have done the "six items of sex hormones" in your pre-pregnancy check-up, then you will be familiar with this name. Its English abbreviation is FSH. It is a gonadotropin and a good brother of luteinizing hormone. Together, they promote the secretion of estrogen, thereby promoting the development and maturation of follicles. In layman's terms, it is similar to a ripening agent.

Of course we know that under normal circumstances a woman needs a mature "dominant follicle" for each ovulation. After each menstruation begins, our pituitary gland will secrete follicle-stimulating hormone and luteinizing hormone, which together stimulate the ovaries to secrete estrogen and mature the follicles.

Standard value of follicle stimulating hormone (blood): The FSH level of normal women is 5~40 mIU/ml, which is generally less than 5 mIU/ml before puberty and greater than 40 mIU/ml after menopause. The concentration of blood follicle-stimulating hormone also changes with the menstrual cycle, which is 1.5~10 mIU/ml in the preovulation period, 8~20 mIU/ml in the ovulation period, and 2~10 mIU/ml in the postovulation period.

How does follicle stimulating hormone affect conception?

Many women may naively think that since follicle-stimulating hormone can promote the maturation of follicles, the more the better. Why do experts say that women with type O blood who secrete more of this hormone are less likely to get pregnant?

Let me give you some basic knowledge. After our pituitary gland secretes follicle-stimulating hormone, it will reach the ovaries through the blood circulation and stimulate the growth of follicles. It usually starts to be secreted on the 2nd or 3rd day of the menstrual cycle and is released in a pulsed manner, with a secretion peak occurring approximately once a minute, stimulating the growth of follicles and the secretion of estrogen, which then stimulates the secretion of more follicle-stimulating hormone, which in turn stimulates the granulosa cells, causing the secretion of estrogen to continue to increase. This cycle eventually reaches a peak before ovulation, initiating the secretion of luteinizing hormone and triggering ovulation.

When estrogen reaches its peak, it inhibits the secretion of follicle-stimulating hormone, so the level of follicle-stimulating hormone gradually decreases until the next menstrual cycle begins again.

It can be seen that although the main function of follicle-stimulating hormone is to promote the development and maturation of follicles, the higher the value is, the better. If the follicle-stimulating hormone level is found to be elevated during testing, it may mean insufficient estrogen secretion, which to some extent reflects a reduction in the ovarian reserve function. As we all know, low ovarian function does affect pregnancy. For example, if the concentration of follicle-stimulating hormone in the blood exceeds 40mIU/ml, it may be premature ovarian failure, and even ovulation-stimulating drugs will be of no help.

Is it really difficult for women with blood type O to get pregnant?

In fact, the claim that women with type O blood secrete more "follicle-stimulating hormone" has not been scientifically confirmed. The current conclusion is only an inference based on probability observations. Different people have different physiques and their hormone secretion is also different. The relationship between blood type and hormone secretion is still being studied. It is difficult for us to draw conclusions about how big the impact is.

Therefore, we cannot make a rash judgment based solely on this whether women with type O blood have difficulty getting pregnant.

However, one thing is certain, that is, if you detect that the concentration of follicle-stimulating hormone is higher than the reference value, you need to be vigilant; if the concentration of FSH in serum is higher than 40 mIU/ml, it will indeed affect pregnancy.

What to do if FSH is too high?

The concentration of follicle-stimulating hormone is an important indicator of ovarian function. If your FSH level is higher than the upper limit of the normal range, be careful that it may be caused by decreased ovarian function.

If it is higher than the upper limit and lasts for more than 3 menstrual cycles, and LH is also high and estrogen levels are low, then it is a sign of a decline in ovarian reserve function to the late stage and may be diagnosed as ovarian failure.

Sisters should take good care of their ovaries in their daily lives. In daily life, they should pay attention to smoking less and drinking less, not staying up late, having a regular work and rest schedule, eating more natural and nutritious foods, and having a balanced diet.