How to Choose IVF in the US, Mexico, or Japan: From Ovarian Stimulation to Embryo Transfer

As marriage and childbirth are increasingly delayed, many people are planning parenthood within a more complex life schedule. Age, ovarian reserve, sperm quality, as well as career and family planning can all affect the timing of having a child.

What Does IVF Actually Address?

IVF, or in vitro fertilization and embryo transfer, is an assisted reproductive technology in which eggs and sperm are retrieved, fertilization takes place in a laboratory, embryos are cultured, and the embryos are then transferred back into the uterus.

Problems with the fallopian tubes, ovulation disorders, endometriosis, and certain male factors can all affect natural conception. For people experiencing fertility difficulties, IVF can bypass some obstacles involved in fertilization and create conditions for subsequent embryo development and transfer.

Before entering an IVF cycle, it is generally necessary to understand a woman's basic fertility status, including age, AMH, baseline hormone levels, and antral follicle count. For men, semen analysis is an important consideration.

These factors can affect the subsequent ovarian stimulation plan. Age in particular is associated not only with ovarian reserve, but also with the risk of chromosomal abnormalities in eggs and embryo development. Therefore, undergoing an evaluation during the preconception stage is more practically useful than simply looking for “which clinic has the highest success rate.”

During a natural menstrual cycle, usually only one dominant follicle ultimately matures and ovulates, whereas ovarian stimulation in an IVF cycle primarily uses medication to encourage multiple follicles to develop simultaneously, with the goal of obtaining multiple mature eggs.

During ovarian stimulation, doctors monitor follicular development through ultrasound and hormone levels and adjust medication dosages according to the actual response. Ovarian stimulation is not simply about obtaining “as many eggs as possible”; the proportion of mature eggs, fertilization results, and subsequent embryo development also need to be considered.

After egg retrieval, the eggs need to be fertilized with sperm. The resulting embryos continue to develop in the laboratory. Some embryos can develop further into the blastocyst stage, while others may stop developing during the process.

Reaching the blastocyst stage is an important milestone in embryo development. Once embryos reach the blastocyst stage, IVF-PGT, also known as third-generation IVF embryo genetic testing, can be performed to analyze the chromosomal status of embryos and provide more information for subsequent embryo selection and transfer.

For families who want to understand their embryos more systematically, PGT testing provides additional information for embryo evaluation and is also an important aspect of modern assisted reproductive treatment.

After embryo culture and relevant testing are completed, doctors also need to consider the condition of the endometrium, hormone levels, and overall physical condition when determining the timing of embryo transfer.

For those reorganizing their fertility plans, the more specific the medical information is, the less likely decisions are to be influenced by a single set of promotional statistics. The IVF USA team founded by Dr. Nathan Zhang has been engaged in overseas assisted reproductive consultation services for more than ten years, providing services including egg freezing in the United States, IVF in the United States, and third-party assisted reproduction for those in need. With nearly 20 years of experience in the field of overseas assisted reproduction, IVF USA recognized the diversity and personalization of reproductive needs and entered the Mexican market early, becoming the Chinese representative of Power Fertility Center Mexico POWER Fertility Center (POWER IVF). Dr. Nathan Zhang’s business has now expanded beyond the United States to include IVF and egg freezing in Mexico, IVF and egg freezing in Japan and Thailand, as well as services in Taiwan and Hong Kong. Let us work together to help you move toward a healthy and beautiful future!