Is the success rate of IVF restricted by age?
Test tube baby is an assisted reproductive technology, which has achieved great success in many infertile couples. However, female age is a key factor, which may affect the success rate of IVF. This article will elaborate on whether the success rate of 43 year old IVF is restricted by age from the following four aspects.

1. Physiological factors
With the growth of age, the number and quality of female eggs will gradually decline. Women are born with all their eggs. As they grow older, the quality of these eggs will decrease, and the number of eggs will also decrease. This makes it more difficult to select high-quality eggs during IVF. In addition, aging will also increase the risk of suffering from other reproductive system diseases, such as hysteromyoma, endometriosis, etc. These diseases may affect the success rate of IVF.
In addition, the aging of women will also affect the health of the uterus. The thickness and quality of endometrium will become worse with the increase of age, thus affecting the implantation of embryos. This means that even if fertilization is successful, it may not be able to successfully embed into the endometrium, leading to pregnancy failure.
To sum up, physiological factors make women's age have an important impact on the success rate of IVF.
2. Delivery risk
Older women also increase the risk of childbirth. Pregnancy and childbirth may lead to a higher risk of complications for middle-aged women, including pregnancy induced hypertension, diabetes, placental abruption, etc. These complications not only pose a threat to the mother's own health, but also may affect the growth and development of the fetus, increasing the risk of premature delivery and low birth weight infants. Therefore, the influence of women's age on the success rate of IVF is not only limited to the pregnancy process, but also the risk of delivery needs to be considered.
3. Sperm quality
In addition to female factors, male age may also affect the success rate of IVF. Research shows that the growth of men's age will lead to the decline of sperm quality and quantity, thus affecting the fertilization ability. This means that if the sperm of older men is used in IVF, the success rate of fertilization may be reduced, thus affecting the success rate of IVF.
4. Age limit
Factors such as age limits exist in some IVF clinics. Some hospitals or doctors may impose restrictions on older women or men not to use IVF technology, which is due to the consideration of success rate and medical risks. Different hospitals and doctors may have different views on the age limit, so when choosing IVF clinics, couples should understand the relevant age limit policies and make appropriate choices.
Summary
In conclusion, female age has an important impact on the success rate of IVF. Physiological factors will lead to the decline of the number and quality of eggs and the quality of endometrium as women grow older, which will affect the success rate of fertilization and implantation. The increasing age of women will also increase the risk of pregnancy and childbirth, which may lead to more complications and adverse pregnancy outcomes. In addition, the growth of male age will also lead to the decline of sperm quality and quantity, which will affect the success rate of IVF. Therefore, the age limit is a factor to be considered when carrying out IVF technology.