What does in vitro fertilization (IVF) refer to?
Disease description:
I know that fertilization is necessary for a normal pregnancy. Recently I heard something about in vitro fertilization and would like to know: What exactly does in vitro fertilization refer to?
Doctor's answer (1)
Dr. Zhao Xiaodong
In vitro fertilization (IVF) is primarily used to treat infertility, especially when natural conception or artificial insemination is unsuccessful. The process includes:
1. **Egg and sperm retrieval**: When the female's follicles are mature, mature eggs are retrieved from the woman's body through medical procedures. At the same time, high-quality sperm are collected from the male's semen.
2. **In vitro fertilization**: The retrieved eggs and sperm are placed in a specialized culture medium that simulates the environment of the female reproductive tract, allowing the sperm and egg to combine outside the body and form a zygote. This process has strict requirements for environmental conditions such as temperature, humidity, and pH.
3. **Embryo culture**: The zygote is cultured in vitro for a period of time, usually 3 to 7 days, until it develops into a blastocyst or early-stage embryo.
4. **Embryo transfer**: The cultured embryo is surgically transferred into the woman's uterus to allow implantation and further growth and development.
