The difference between IVF and natural pregnancy
Fertility is an important way of human reproduction, and the IVF technology provides an alternative for some infertile couples. There are some significant differences between IVF and natural pregnancy. This article will elaborate on IVF and natural pregnancy from four aspects.

physiological process
There are obvious differences between the physiological process of IVF and natural pregnancy. In natural pregnancy, the egg and sperm meet through sexual behavior, and the fertilized egg migrates to the endometrium for implantation, forming an embryo and eventually developing into a fetus. The IVF is carried out in the hospital through artificial pregnancy. The eggs and sperm are combined and cultured into embryos in the laboratory, and then the most promising embryos are transferred to the mother's uterus. The IVF reproduction process needs to follow strict operating procedures, involving multiple technical operations.
First, for test tube babies, women need to undergo ovulation induction treatment, use drugs to stimulate ovarian development, and increase the number of eggs. Then, after ultrasonic monitoring, the doctor evaluates the size and number of follicles to determine the best time for egg retrieval. Then, the eggs were taken out through the vagina with a fine needle, combined with the sperm provided by the man, fertilized in vitro, and cultured into embryos. Finally, the embryo is placed in the mother's uterus, waiting for implantation and pregnancy. In contrast, there is less control and intervention in these processes during natural pregnancy.
Success rate and risk
There are also differences in the success rate and risk between IVF and natural pregnancy. The development of IVF technology provides an opportunity for infertile couples to successfully conceive. However, the success rate is not 100%, which depends on many factors, such as age, physical health, disease, etc. According to statistics, the success rate of IVF is usually between 30% and 70%.
There are also some risks during IVF. For example, the egg retrieval process may lead to complications, such as ovarian hyperstimulation syndrome (OHSS). In addition, embryo transfer may lead to multiple pregnancy, which may lead to premature delivery, low birth weight and other problems. In addition, compared with natural pregnancy, IVF needs more medical examination and monitoring during pregnancy, which increases the possibility of further diagnosis and treatment.
Time and economic costs
In terms of time and economic costs, there are obvious differences between IVF and natural pregnancy. Natural pregnancy does not require additional treatment and technical support, but can be achieved through sexual behavior. IVF needs a series of medical examinations, IVF technical operations, and drug treatment, which takes a long time. In addition, since IVF involves multiple technical operations and the use of instruments and equipment, it needs higher economic cost support.
Summary
Compared with natural pregnancy, IVF has obvious differences in physiological process, success rate and risk, time and economic cost. Although IVF technology provides a viable option for infertile couples, the risks and economic burden of technology operation also need to be considered. Therefore, for couples who need to experience IVF technology, try to seek guidance and support from professional doctors in real hospitals to ensure the safety of the operation and the improvement of the success rate.