For older women, women's ovarian function will be significantly reduced. When ovulation induction drugs are used, the number of eggs that can be obtained will be relatively small, or even there will be no follicle growth. Even if there are follicles, the number of follicles will be less, and eggs may not be taken when taking eggs, so sometimes ovulation is promoted several times.
2. The quality of eggs may be poor.
Older women may have poor ovulation induction effect, take fewer eggs or find it difficult to take eggs. However, the quality of eggs is poor, and the proportion of unfertilized eggs, abnormal fertilization and chromosome abnormalities may increase after obtaining eggs. The chromosome abnormality rate of women over 40 years old has reached 70%~80%. However, if the embryo quality is poor, there may be no embryos that can be transplanted, and embryo culture needs to be carried out many times until a good embryo is obtained.
3. The pregnancy rate is low and the abortion rate is high.
Relevant data show that the older the IVF, the lower the clinical pregnancy rate and delivery rate, and the higher the abortion rate.
There may be complications during pregnancy.
Older women should also pay attention to possible complications during pregnancy, which may lead to premature delivery and abortion in severe cases. A little carelessness may endanger the health of pregnant women and fetuses.