You, who must be helping pregnancy, are like everyone else, having doubts about "test-tube baby" helping pregnancy. "Test tube baby" is not a baby that really grows up in a test tube. It is an in vitro fertilization and embryo transfer technology

Common name for

. The process is to use ovulation-inducing drugs to grow and mature multiple follicles, then take out mature eggs from the woman's ovaries and combine them with the man's sperm in a culture dish to form an embryo

The embryo is then implanted into the uterine cavity, allowing it to be implanted and pregnant in the uterus.

At present, with the development of "test-tube baby" technology,"test-tube baby" technology is divided into three generations, commonly known as the first generation, second generation, and third generation test-tube baby. There is no among the three generations of "test tube babies"

The decision is mainly based on the examination of the couple."

First generation of IVF technology

The first generation of IVF technology, namely conventional in vitro fertilization and embryo transfer (IVF-ET), refers to placing preferentially processed sperm around the egg taken from the ovary to fertilize it naturally, and finally

Select high-quality embryos and transfer them back into the uterus. The popular metaphor is to let eggs and sperm fall in love and combine freely.

This technology only provides a platform for sperm to freely combine with eggs. Doctors do not directly interfere with which sperm to combine with the egg. The first generation of "test tube babies" is mainly suitable for female factor infertility

Patients such as fallopian tube obstruction or adhesions, polycystic ovary syndrome, endometriosis, etc.

Second generation IVF technology

The second-generation IVF technology is the intracytoplasmic sperm injection technology (ICSI) of oocyte. It refers to selecting sperm with better shape and vitality under a microscope, and directly injecting a single sperm into the egg.

Intracytoplasmic fertilization means that sperm must rely on the help of a doctor to combine with the egg. A popular metaphor is an arranged marriage, forcing sperm and eggs to combine.

It is mainly suitable for severe male infertility, such as severe oligospermia, weak spermia, and teratospermia. Mature sperm can be obtained through testicular or epididymal sperm extraction. Patients with azoospermia.

Third generation IVF technology

The third generation of IVF technology is preimplantation genetic diagnosis (PGD). Thistechnology requires removing one or several cells from the embryo for testing to assess whether the embryo has chromosomal abnormalities and

Genetically inherited the disease, select healthy embryos and transfer them back into the uterus. This operation may have a potential impact on embryonic development and is mainly suitable for births with genetic diseases, chromosomal abnormalities, monogenic diseases, etc.

People with a higher rate of abnormal fetuses.

It can be seen from the above that the higher the number of generations in IVF, the higher the risk. It is not that the higher the number of generations, the better. In fact, no matter which generation of "test tube babies" it is, the one that suits you is better.