Fertility

Fertility, also known as fertility and fertility, refers to the physical ability of both partners to give birth to a live-born baby. Male fertility refers to the male's ability to produce sperm and sperm to be fertilized, and female fertility refers to the female's ability to produce oocytes, egg cells, and conceive a fetus.

In recent years, the delayed reproductive age, environmental pollution, and the rejuvenation of malignant diseases have caused human fertility to be faced with unprecedented threats. Declining fertility has become a worldwide health problem.

Common fertility problems include male infertility and female infertility. Under normal circumstances, both sexes are considered to have fertility problems if they cannot conceive within one year without contraceptive measures and the frequency of sexual intercourse and behavior are normal. Due to the man’s factors, the woman cannot conceive naturally, which is called male infertility. The inability to conceive naturally due to the woman’s factors is called female infertility.

Fertility protection refers to the use of surgery, drugs or assisted reproductive technology to help adults or children at risk of infertility or infertility, protect their reproductive endocrine function, and obtain genetic offspring.

In recent years, the delayed reproductive age, environmental pollution, and the rejuvenation of malignant diseases have caused human fertility to be faced with unprecedented threats. Declining fertility has become a worldwide health problem.

Common fertility problems include male infertility and female infertility. Under normal circumstances, both sexes are considered to have fertility problems if they cannot conceive within one year without contraceptive measures and the frequency of sexual intercourse and behavior are normal. Due to the man's factors, the woman cannot conceive naturally, which is called male infertility. The inability to conceive naturally due to the woman's factors is called female infertility.

Fertility protection refers to the use of surgery, drugs or assisted reproductive technology to help adults or children at risk of infertility or infertility, protect their reproductive endocrine function, and obtain genetic offspring.

Female fertility protection

At present, the methods commonly used for female fertility protection include oocyte freezing and embryo freezing. In addition, there are ovarian tissue freezing, primordial follicles, and preantral follicles in vitro culture, reducing the toxicity of drugs to germ cells and germ stem cells. Separation and other methods. The freezing technology of freezing oocytes and embryos is relatively mature and has been routinely used in the clinical practice of reproductive medicine. Many offspring have been obtained through this technology worldwide. Ovarian tissue freezing technology is aimed at pre-pubertal women, or cancer treatment needs to be implemented as soon as possible, and there is not enough time to wait for the practice of ovulation induction or those who have contraindications for ovulation induction and pre-pubertal patients.

For healthy women whose childbearing age is delayed, oocyte freezing and ovarian tissue cortex freezing can be selected. With the increase of age, the quality and quantity of oocytes decrease correspondingly, the risk of oocyte aneuploidy increases, mitochondrial dysfunction, and reproductive function are lost. Compared with slow freezing, vitrification can improve the protective effect of ovarian follicles and interstitial structure, increase the survival rate of follicles, and thus improve the function of tissues after transplantation. Although great progress has been made in ovarian transplantation in recent years, the success rate is still very low. So far, only more than 60 healthy babies have been born after cryotransplantation of ovarian tissues from all over the world. Factors that affect the function of ovarian tissue after transplantation include: ischemic injury, the choice of freezing methods, the age of the patient when the ovarian tissue is frozen, the use of pre-freezing gonadal toxic drugs, the volume of the transplanted ovarian tissue, etc.

生育能力

生育力又称可育性、生殖力，是指伴侣双方能够生育活产婴儿的生理能力,男性生育力是指男性产生精子以及精子受精的能力，女性生育力是指女性产生卵母细胞、卵细胞并孕育胎儿的能力.