How to determine the source of IVF eggs
IVF refers to the way to achieve pregnancy by implanting eggs and sperm into women's uterus after in vitro fertilization through assisted reproductive technology. In the process of IVF, the source of eggs is very important, and its quality directly affects the success rate of pregnancy. So, how is the source of IVF eggs determined? The following four aspects are described in detail: mature egg extraction, procedures, frozen eggs and ovarian stimulation.
1. Extraction of mature eggs
In the procedure of IVF, it is first necessary to extract the mature eggs of women. These eggs generally come from patients themselves or egg donors. If the egg comes from the patient, the doctor will confirm the best extraction time through menstrual cycle monitoring. Generally, doctors will extract eggs at the best time in the female ovulation cycle to obtain the best quality mature eggs.
For those women who cannot produce normal eggs, they can choose to use egg donation. Egg donation refers to the transplantation of eggs donated by young healthy women to patients in need. The hospital will conduct detailed physical examination and genetic screening for egg donors to ensure good egg quality and eliminate the risk of genetic diseases.
2. Procedure
For those women who volunteer to donate eggs, they need to go through a series of procedures. The first is physical examination, including obtaining detailed medical history, measuring blood pressure, drawing blood for routine tests and screening for sexually transmitted diseases. Followed by follicle monitoring, doctors use ultrasound to determine the development of eggs and the best time. After determining the best time, the doctor will use a fine needle puncture technique to extract eggs through the vagina, which is usually carried out in painless conditions.
At the end of the process, the eggs will be immediately transferred to the culture medium for preservation, and then implanted into the patient after being combined with sperm. The procedure of egg donation is usually carried out in the specialized clinic or assisted reproduction center of the hospital to ensure the safety and professionalism of the operation.
3. Frozen eggs
For some eggs that cannot be used immediately under specific circumstances, such as patients who need other medical treatment, or have temporary reasons that are not suitable for transplantation, frozen eggs can be selected. Frozen eggs can be thawed and used at a suitable time in the future.
The freezing of eggs is usually carried out after the eggs mature, and the eggs are frozen and stored in liquid nitrogen through special freezing technology. The freezing technology of frozen eggs has made great progress in the past few years. The success rate is getting higher and higher, and there is no obvious negative impact on egg quality.
4. Ovarian stimulation
In some cases, the number of female eggs is insufficient to meet the needs of IVF. Therefore, doctors will stimulate the ovary to increase the number of eggs produced. Ovarian stimulation is usually achieved by the use of synthetic hormones, such as gonadotropins.
During ovarian stimulation, doctors will closely monitor the development of follicles to ensure the optimal quality and quantity of eggs. Once the follicle develops to the proper size, the doctor will trigger the follicle rupture, and arrange the appropriate time for egg extraction and IVF procedures.
Summary
It is very important to determine the source of IVF eggs, which involves mature egg extraction, procedures, frozen eggs and ovarian stimulation in the whole process. Doctors will select the most appropriate egg source according to the specific conditions and needs of patients to ensure the success rate and safety of IVF. At the same time, relevant departments will also carry out strict inspection and screening on the quality of eggs and the physical condition of donors to ensure the smooth progress of IVF process.
