4. Unexplained infertility.
3. Male factors: Retrograde ejaculation, low sperm count, weak sperm or abnormal sperm;
"IVF (In Vitro Fertilization)"
For a normal couple, if no contraception is used, the probability of pregnancy in the first month should be 25%, after six months it should be 60%, and after one year, 85% of couples should be pregnant. As the years of infertility after marriage increase, the possibility for infertile couples to conceive naturally becomes smaller. Therefore, infertility refers to a normal couple being unable to conceive within one year without using contraception. According to statistics from the World Health Organization, about 10% of couples of childbearing age are troubled by infertility, and this proportion is showing an increasing trend. This is not unrelated to the late marriage in modern society, the delay in childbearing age, and complications from induced abortions. Many infertile couples would rather try to conceive on their own than easily adopt other people's children because, apart from emotional factors, they also fear that adopted infants may have serious health problems. This makes the treatment of infertility increasingly important.
2. Immune factors: Either the male or female partner contains antibodies against sperm;
Infertility is not a life-threatening disease, but it can affect the relationship between spouses and the quality of their life. What causes infertility? According to modern medical research on human reproduction, we categorize the causes of infertility into the following types:
1. Female factors: Mainly related to fallopian tube issues; such as blocked fallopian tubes, removal of fallopian tubes, difficulty in reconnection after tubal ligation. Other factors include endometriosis, uterine fibroids, immature uterus, ovarian factors.
In the treatment of infertility, medical workers around the world are making unremitting efforts. For example, to address fallopian tube issues, techniques like fallopian tube recanalization, fallopian tube plastic surgery, and fallopian tube fistula formation were developed at the beginning of this century, along with traditional Chinese medicine treatments, but the therapeutic effects were not entirely satisfactory. In the 1950s, people discovered that fertilization of sperm and egg in vitro and in vitro culture were completely possible. In 1978, the first "test-tube baby" was born in the UK using in vitro fertilization - embryo transfer technology (IVF-ET). This technology has been hailed as "the second major miracle in human medicine after organ transplantation." It represents a significant breakthrough in the treatment of infertility.
The "test-tube baby" technique is a high-tech technology that requires a team of experienced and specialized personnel (such as endocrinologists, cytogeneticists, embryologists), certain instruments, and necessary drugs. There are many steps in the entire process, and each step can potentially affect the final success. Currently, in developed countries in Europe and America, there are many "test-tube baby" centers, and over 300,000 children have been born through this method, but the success rate still hovers around 30-40%. Our institute started clinical applications of test-tube baby technology in 1996, and in 1997, the first test-tube baby in the southwestern region was born here. In 1998, the first ICSI (second-generation test-tube baby) in the southwestern region was successfully delivered in our institute. Currently, our success rate is approximately 37%.