IVF enters the stage of the cycle
IVF is a kind of baby developed by artificial reproduction technology, which completes the process of fertilization and early embryonic development in the laboratory, and then transfers the well developed embryo to the mother's womb. The whole process of IVF can be divided into several stages, including selecting suitable patients, preparing and regulating the female ovary, taking eggs and fertilization, embryo culture and observation, and embryo transfer. The following will introduce the stages of IVF entering the cycle from different perspectives.

Selection and evaluation of patients
IVF treatment needs to ensure the right candidates, and doctors will conduct a detailed evaluation of the patients. First, the doctor will check women's physiological conditions, including ovarian function and uterine conditions. In addition, the doctor will also consider the patient's age, birth history, basic diseases and other factors. Based on the evaluation results, the doctor will decide whether IVF treatment is suitable.
After selecting a suitable patient, the doctor will introduce the process and possible risks of IVF treatment to the patient in detail, and ask the patient to sign an informed consent form. The doctor may also recommend the patient to carry out auxiliary examinations, such as blood examination, ultrasound examination, etc., to ensure that the physical condition is suitable for IVF treatment.
Regulation of female ovary
In order to increase the success rate, doctors need to regulate women's ovarian function by giving drugs. These drugs include ovulation stimulating hormone, gonadotropin and anti estrogen drugs. The use of these drugs can regulate ovarian function, promote the simultaneous development of multiple mature follicles in the ovary, and increase the chance of fertilization.
During the regulation period, the doctor will regularly check the ovarian response, and observe the changes in the size and number of follicles through ultrasound and other inspection methods. Once the optimal follicular development status is reached, the doctor will arrange to continue the next step, that is, egg retrieval.
Egg taking and fertilization
At the end of the ovarian development regulation period, the doctor will arrange an egg retrieval operation. This is usually done the day after the patient's ovulation prediction period. Under the guidance of ultrasound, doctors insert a slender needle into the patient's ovary to extract mature follicles and eggs. This process usually requires general anesthesia and is completed in the operating room.
After taking the eggs, the doctor will combine the obtained eggs with the sperm source (usually the partner's sperm) for fertilization. The conventional IVF method can be used for fertilization, or more advanced technology can be selected, such as single sperm injection (ICSI).
Embryo transfer and follow-up observation
The fertilized eggs will be cultured and developed in the laboratory. Doctors will select suitable embryos for transplantation according to the state and quality of the embryos. Embryo transfer is performed through vaginal operation in the gynecological clinic, which is relatively simple.
After transplantation, patients need a period of rest and observation. The doctor may recommend the patient to take luteal support treatment to increase the chance of successful pregnancy. Later, the patient needs to have regular pregnancy checks to ensure the successful implantation of the embryo and the smooth development of the pregnancy.
conclusion
The stage of IVF entering the cycle includes patient selection and evaluation, regulation of female ovary, oocyte retrieval and fertilization, as well as embryo transfer and follow-up observation. These stages are critical steps in completing IVF treatment. Through scientific methods and medical technology, IVF treatment has brought fertility hope to many infertile patients.