Role of HCG in IVF
IVF refers to in vitro fertilization and embryo transfer technology, and HCG (human chorionic gonadotropin) is an important hormone in this process. The role of HCG mainly involves the following four aspects:
1. Promote follicular development
In IVF, HCG is mainly used to promote the development of follicles. A few days before egg retrieval, the doctor will monitor the ovary. Once the size and number of follicles reach an appropriate level, HCG will be injected to help the follicles continue to develop and mature. HCG can imitate pregnancy hormone, suggesting that lutein is produced after follicular development, so as to maintain the stability of endometrium and prepare for implantation.
After HCG injection, eggs are usually collected within 36 to 40 hours. This time point is critical to the quality and fertilizability of eggs. Under the guidance of doctors, sperm will combine and fertilize the collected eggs.
2. Promote embryo implantation
HCG not only plays a role in follicular development, but also plays an important role after embryo transfer. Within 10 to 14 days after embryo transfer, the endometrium will undergo a series of changes to prepare for embryo implantation. HCG injection will strengthen the preparation of endometrium and help embryo implantation.
3. Maintain pregnancy
If the embryo is successfully implanted, the role of HCG will shift to maintaining pregnancy. In normal pregnancy, HCG will continue to be produced, supporting the normal function of corpus luteum. The progesterone secreted by corpus luteum is an important hormone to maintain pregnancy, which can help stabilize the endometrium and protect the embryo. HCG injection also plays a similar role in IVF of transferred embryos, supporting luteal function and maintaining pregnancy.
4. Pregnancy detection
HCG not only plays a key role in IVF, but also can be used as an indicator of pregnancy. Because the production of HCG is related to pregnancy, the level of HCG in women's body will increase significantly after pregnancy. Successful pregnancy can be confirmed by detecting HCG levels in urine or blood, and then more detailed pregnancy tests can be carried out.
Precautions for IVF HCG
HCG injection is necessary during IVF. However, the following points should be noted:
1. Follow the doctor's instructions
In the process of IVF, doctors are the most authoritative experts. It is very important to follow the doctor's instructions. They will determine the appropriate HCG dosage and use time according to the specific situation of the patient.
2. Pay attention to allergic reaction
Some people may be allergic to HCG, so the doctor should be informed of the allergy history before injection. In case of allergic reaction, such as urticaria, shortness of breath or drop in blood pressure, seek medical advice immediately.
3. Pay attention to side effects
HCG injection may cause some side effects, such as abdominal pain, headache, breast pain, etc. Generally, these side effects will disappear automatically in a short time. However, if there are serious side effects, such as severe abdominal pain, vomiting or fainting, seek medical advice immediately.
4. Keep healthy living habits
The success rate of IVF depends largely on the health of the mother. During the period of receiving HCG injection, healthy living habits should be maintained, including good diet, sufficient sleep, moderate exercise and reducing stress.
summary
HCG injection during IVF plays a very important role in promoting follicular development, embryo implantation, maintaining pregnancy and detecting pregnancy. When using HCG injection, you must follow the doctor's instructions, and pay attention to allergic reactions and possible side effects. Maintaining healthy living habits is also critical to the success of IVF. Through the rational use of HCG injection, we hope that more couples can realize their dreams of having healthy babies.
