The process of IVF ovulation promotion
IVF ovulation promotion is a common method in assisted reproductive technology, which aims to promote ovarian ovulation and increase the chance of fertilization by using hormone drugs. This process usually includes the following steps:
1. Preliminary examination: The doctor will make a preliminary assessment of the patient's physical condition, including ovarian function, endometrial thickness and ovulation cycle. This will help doctors to develop personalized drainage promotion programs.
2. Medication process: The doctor will issue a proper hormone drug program according to the specific situation of the patient. These drugs can stimulate the growth of ovarian follicles and increase the number of eggs. Patients need to inject or take medicine orally according to the doctor's advice, and during this period, they should return regularly to monitor the development of follicles.
3. Ovulation trigger: When the follicle grows to the proper size, the doctor will use human chorionic gonadotropin (hCG) injection to trigger ovulation. Usually, the injection will be carried out when the follicle grows to 18-20 mm, so that the eggs can be collected.
4. Egg collection: After about 36 hours, the patient needs to come to the hospital for egg collection. Doctors will use special slender tubes to penetrate the vagina into the ovary, and then extract the eggs from the follicle. This process generally requires local anesthesia, which is not too painful for patients.
Relationship between IVF stimulation and multiple pregnancy
IVF ovulation promotion may lead to multiple pregnancy, because the use of hormone drugs can stimulate the development of multiple ovarian follicles and increase the chance of multiple eggs being fertilized. The following are some factors that may affect multiple pregnancy:
1. Development of multiple follicles: The use of hormone drugs can stimulate the development of multiple ovarian follicles, which means that there may be multiple eggs fertilized at the same time. If multiple eggs are successfully fertilized and implanted, multiple pregnancy will occur.
2. Number of embryos transferred: In the IVF program, multiple embryos are usually transferred back to the mother to increase the success rate of pregnancy. However, the number of embryos transferred increases the risk of multiple births.
3. Individual differences: The human body has different responses to hormone drugs. Some people may be more sensitive to drugs and develop more follicles. This increases the possibility of multiple pregnancy.
Methods of reducing multiple pregnancy in IVF ovulation promotion
In order to reduce the risk of multiple pregnancy during IVF ovulation promotion, doctors can take some measures:
1. Adjust the dosage of hormone drugs: according to the specific conditions and physiological characteristics of the patient, the doctor can adjust the dosage of hormone drugs to make the ovarian development more moderate and reduce the occurrence of multiple pregnancy.
2. Managing the number of embryos transferred: Doctors can decide the number of embryos transferred according to factors such as the quality of embryos and the age of patients. Usually, young patients can consider transferring fewer embryos.
3. Single embryo transfer: For some special cases, such as young patients or patients with good egg quality, doctors may recommend only one embryo transfer to reduce the risk of multiple pregnancy.
summary
IVF ovulation promotion can promote ovarian ovulation and increase the chance of fertilization, but it may also lead to multiple pregnancy. The risk of multiple pregnancy is high for patients and embryos. Therefore, doctors should take corresponding measures according to the specific conditions of patients to reduce the risk of multiple pregnancy when promoting IVF. In this way, it can not only improve the success rate of pregnancy, but also ensure the health and safety of embryos and patients.
