The family planning policy has gradually relaxed, and many eligible families can have a second child. As a result, more and more people are concerned about matters needing attention in giving birth to a second child at an older age.
However, for older couples over 35 years old, it is not so easy to welcome the arrival of new life. Generally speaking, there are four difficulties to overcome in giving birth to a second child at an older age:
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Difficulty in pregnancy;
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Abortion is easy;
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Many birth defects;
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The risk of massive hemorrhage is high.
Therefore, older parents planning to have a second child should be prepared for bad news.
Difficulty 1: Pregnancy Difficult
The probability of pregnancy for women over 35 years old will begin to decline, and the cumulative probability of pregnancy for one year is about 75%. Therefore, women over 35 years old who want to be pregnant should consult a reproductive professional doctor if they are not pregnant after 6 months of active attempts.
Women over the age of 40 will have a sharp decline in their ability to conceive, The cumulative probability of conception for one year is about 40% ~ 50%. For women of this age, even if they are doing test tube baby (IVF), the pregnancy rate is only 10% each time. This is because the number of normal egg cells in the ovaries of women over 40 years old is greatly reduced. Therefore, women over 40 years old who wish to become pregnant should seek the help of a reproductive professional doctor if they have not been pregnant after trying for 3 months.
For women over the age of 45, pregnancy is a very difficult thing, and the probability of conception is less than 1%. Because almost all the remaining eggs of women over the age of 45 are genetically abnormal. Almost all the successful pregnancies over the age of 45 are the result of egg donation.
Difficulty 2: Abortion Easy
In the whole population, the abortion rate is about 15%, and with the increase of age, the abortion rate gradually increases.
- Pregnant at the age of 35, the abortion rate is about 25%; Pregnant at the age of 40, abortion rate is about 35%; When pregnant at the age of 45, the abortion rate has reached about 50% ~ 60%.
The main cause of abortion in older pregnancy is embryo chromosome abnormality, so under normal circumstances, fetal protection treatment is meaningless and cannot prevent abortion.
Difficulty 3: Many Birth Defects
With the increase of women’s age, the quality of eggs is also declining, and the probability of problems with fertilized eggs is also obviously increasing.
The probability of fetal risk of birth defects is shown in the following table:
However, this is only the probability of chromosome abnormalities, and does not include fetal structural defects with higher incidence rate, which shows the high degree of danger.
Difficulty 4: High Risk of Massive Hemorrhage
There are many advantages of natural labor, such as small injury and quick recovery. Compared with the women of cesarean section of the first child, the risk of massive hemorrhage during the birth of the second child is much smaller. Therefore, the massive hemorrhage risk mentioned here is mainly aimed at the women of cesarean section of the first child.
In China, there is no official cesarean section rate. According to WHO’s sample survey in three provinces and cities in China, the cesarean section rate is 46.2%. According to this analysis, the cesarean section rate in big cities is higher than 50%.
In other words, nearly half of the women who have a second child have a history of cesarean section. Once the placenta of these women is planted in the incision of the lower uterus, it will become the so-called “dangerous placenta previa”.
At the thought of these [time bombs], obstetricians cannot sleep well. Because the probability of postpartum hemorrhage caused by dangerous placenta previa is very high, serious patients need to have their uterus removed, and in some cases even lead to maternal death.
So, how long will it take to get pregnant again after cesarean section? Click here to view.
Summary
What about so many risks when giving birth to a second child at an older age? Only one level at a time.
Therefore, to give birth to babies, one must do so as early as possible. If you want to have more children, you will have a good natural birth.
Responsible Editor: BruceLi