According to statistics of the World Health Organization (WHO), Vietnam is one of the countries in the Asia-Pacific region with the lowest fertility rate and the highest infertility rate in the world.
It is estimated that Vietnam has about 1 million infertile couples. In which, 50% of infertile couples are under the age of 30, 7.7% is the infertility rate of couples of childbearing age. Among them, the rate of secondary infertility (infertility after one pregnancy) is growing, accounting for more than 50% of infertile couples and increasing over previous years by about 15-20%.
Currently, in medicine, there have appeared assisted reproductive techniques such as: Intrauterine insemination of sperm, in vitro fertilization, etc. In which there are two types of in vitro fertilization techniques: classical, injection sperm into the oocyte cytoplasm. In vitro fertilization is indicated for the treatment of blocked fallopian tubes, ovulation disorders, endometriosis, polycystic ovary syndrome, abnormal sperm count and quality, infertility of unknown cause. cause or fail with other treatment techniques.