Definition of second-generation IVF
The second generation of IVF refers to a method of treating infertile couples through assisted reproductive technology, in vitro fertilization embryo transfer (IVF-ET) technology or other related technologies, cultivating embryos in the laboratory, and then transferring the embryos to the mother's uterus to promote pregnancy and pregnancy process.
Age limits for second generation IVF infants
There is no unified global guideline for the age limit of the second-generation IVF. When formulating guidelines, countries and hospitals will take into account such factors as ethics, medical safety, laws and regulations. However, in general, the age limit of the second generation IVF is as follows:
Female age limit
The reproductive function of women gradually declines with age. Generally speaking, women should be between 35 and 45 years old when receiving second-generation IVF treatment, and it is better to complete it before the age of 40, because women have relatively high fertility at this age. For women over 45 years old, the quality and quantity of eggs in their bodies will decline significantly, leading to a significant reduction in the success rate.
London Women's Clinic in London, England, stipulates that women should be between 18 and 50 years old for second-generation IVF treatment.
Male age limit
The male reproductive function is generally relatively stable, and will not decline significantly until old age. Therefore, the age limit for men is relatively loose. Generally speaking, there is no limit on the age of men when they receive second-generation IVF treatment, as long as the quality and quantity of sperm meet the requirements of fertility.
Physical health
The second-generation IVF treatment needs to go through a series of physical examinations and formal hospital assessments to ensure that the patient's physical condition is suitable for treatment. For patients with serious heart, lung, kidney or metabolic diseases, the hospital may restrict them from receiving second-generation IVF treatment.
Melbourne Fertility Clinic (Melbourne IVF) in Melbourne, Australia requires that patients should receive comprehensive physical examination and consultation before undergoing second-generation IVF treatment to ensure that their health conditions meet the treatment requirements.
Ethical considerations
Ethical and moral factors will also be considered in the age limit of second-generation IVF. For teenagers or adolescents, medical institutions may restrict them from receiving second-generation IVF treatment, because they are not yet mentally and psychologically mature and are difficult to bear possible physical and psychological risks.
Summary
In general, the age limit for second-generation IVF babies is mainly for women, generally between 35-45 years old, with high fertility. The age limit for men is relatively loose, as long as the quality and quantity of sperm meet the fertility requirements. The hospital will also consider the patient's health status, ethics and other factors to develop guidelines. It should be emphasized that the age limit is only a reference standard, and the specific selection should be determined according to the patient's personal situation.
