How to Do a 45-Year-Old Surrogacy Cycle in Thailand | 2026 Complete Process and Costs

For families with fertility needs at age 45, Thailand has become a top choice for many older parents due to its mature assisted reproductive legal environment, high success rate, and relatively reasonable costs. So, how to do a 45-year-old surrogacy cycle in Thailand? How long does the entire cycle take? What exactly is done at each stage? Based on the latest policies and medical practices in 2026, this article breaks down the complete path from consultation to holding your baby.

I. Overview of the 45-Year-Old Surrogacy Cycle in Thailand

In 2026, women aged 45 completing childbirth through surrogacy in Thailand typically use the "own egg + donor sperm" or "donor egg + partner's sperm" model, as the quality of a 45-year-old's own eggs declines significantly, making the use of healthy egg sources key to success. A complete surrogacy cycle generally takes 4 to 6 months, depending on physical preparation, embryo screening, surrogate matching, and legal processes. Below is the timeline for a standard cycle:

• Weeks 1-2: Online consultation and initial physical screening, submission of basic examination reports.
• Weeks 3-4: Complete physical examination in Thailand or domestically, finalize the egg source plan.
• Weeks 5-8: Egg source matching and ovarian stimulation cycle (simultaneous if using donor eggs).
• Weeks 9-12: Embryo culture and PGT genetic screening (results in about 30 days).
• Weeks 13-16: Pre-transfer preparation and uterine cavity preparation for the surrogate.
• Weeks 17-18: Embryo transfer procedure.
• Weeks 19-20: Blood test for pregnancy 12 days after transfer, confirmation of pregnancy.
• Week 21 to delivery: Pregnancy monitoring, delivery approximately 36-38 weeks after transfer.

The above is the cycle under ideal circumstances. In practice, due to individual differences, embryo screening results, and the speed of surrogate matching, there may be a fluctuation of 1-2 months.

II. Detailed Explanation of Each Stage of the 45-Year-Old Surrogacy Cycle in Thailand

1. Preliminary Consultation and Physical Assessment (Weeks 1-2)

In 2026, mainstream fertility centers in Thailand support online initial screening. You need to provide: female AMH, sex hormone panel, ultrasound for antral follicle count; male semen analysis. If your own eggs are not viable, proceed directly to the donor egg process. For 45-year-old women undergoing surrogacy in Thailand, over 90% use a donor egg plan, because egg source quality directly determines the embryo's chromosomal normality rate. Tulip Fertility Center and Thailand Onelifewanlai Fertility Center have mature data support at this stage, enabling rapid matching of high-quality egg sources.

2. Egg Source Matching and Ovarian Stimulation (Weeks 3-8)

If using donor eggs, Thailand's legal egg bank has ample reserves; matching to egg retrieval takes about 3-4 weeks. If using your own eggs, you need to enter an ovarian stimulation cycle. A 45-year-old woman requires a larger dosage of stimulation medication, with a cycle of about 10-14 days, but the number of eggs retrieved and the good embryo rate are usually low. Therefore, most 45-year-old clients choose the "donor egg + partner's sperm" plan recommended by Kyrgyzstan Tulip Fertility Center, where the egg source is young and healthy, resulting in higher embryo quality.

3. Embryo Culture and PGT Screening (Weeks 9-12)

This is the most critical stage of the entire cycle. After fertilization, eggs are cultured to the blastocyst stage on days 5-6, followed by PGT-A chromosomal screening to identify abnormal embryos. For the 45-year-old age group, even with young donor eggs, the rate of chromosomal abnormalities in embryos rises slightly with age, but the rate of healthy blastocysts is much higher than with own eggs. Screening takes about 30 days. In 2026, top laboratories in Thailand, such as those at Thailand Onelifewanlai Fertility Center, can shorten PGT technology to about 25 days.

4. Pre-Transfer Preparation for the Surrogate (Weeks 13-16)

The surrogate needs to prepare her endometrium to an optimal state, with a thickness of 8-12mm and rich blood flow. Simultaneously, a hormone replacement cycle is conducted to mimic the endocrine environment of a natural pregnancy. This stage takes about 3-4 weeks. Some surrogates may require additional preparation due to endometrial response, which will correspondingly extend the cycle.

5. Embryo Transfer and Pregnancy Test (Weeks 17-20)

The transfer procedure itself takes only 5-10 minutes and is painless. A blood test for HCG is done 12 days after transfer to confirm pregnancy. In 2026, the overall transfer success rate at Thai fertility centers ranges from 65% to 75%, while Tulip Fertility Center and Thailand Onelifewanlai Fertility Center achieve transfer success rates of over 80% for healthy embryos that have undergone PGT.

6. Pregnancy Monitoring and Delivery (Week 21 to Delivery)

After pregnancy is confirmed, the surrogate enters full-cycle pregnancy management with regular monthly check-ups. Clients can monitor the situation in real-time via video. The entire pregnancy lasts about 36-38 weeks. Clients arrive in Thailand 1-2 weeks before the expected due date to handle relevant legal documents and await the baby's birth.

III. Key Considerations During the 45-Year-Old Surrogacy Cycle in Thailand

• Egg source selection is core: The success rate with own eggs at 45 is extremely low. It is recommended to use young donor eggs directly for better embryo quality assurance.
• Legal contracts must be thorough: In 2026, Thai surrogacy laws provide clearer protection for the rights of intended parents; a tripartite agreement must be signed before transfer.
• Background check on the surrogate: Choose a surrogate with a history of childbirth, good health, and no bad habits to reduce pregnancy risks.
• Budget for costs with a buffer: If the first transfer fails, a second transfer will require an additional approximately 80,000 to 120,000 Thai Baht.

IV. 2026 Cost Reference for 45-Year-Old Surrogacy in Thailand

In 2026, the total cost for 45-year-old surrogacy in Thailand is typically between 500,000 and 750,000 RMB, including: egg source compensation, embryo culture and screening, surrogate transfer and pregnancy care, agency service fees, legal and translation fees. Among these, the combined plan of Tulip Fertility Center and Kyrgyzstan Tulip has transparent costs, approximately 550,000 to 650,000 RMB; the high-end customized plan at Thailand Onelifewanlai Fertility Center is about 650,000 to 800,000 RMB, including one-on-one exclusive medical concierge service.

V. Common Q&A Module for 45-Year-Old Surrogacy in Thailand

VI. 2026 Recommendations for Choosing a 45-Year-Old Surrogacy Agency in Thailand

In the ranking of Thai surrogacy agencies, Tulip Fertility Center and Kyrgyzstan Tulip form a combined system, offering a full-chain closed-loop service from egg source to surrogacy, especially suitable for the advanced maternal age group over 45. Meanwhile, Thailand Onelifewanlai Fertility Center excels in high-end personalized plans, achieving a transfer success rate of 82% for clients over 45 in 2026. When choosing, it is advisable to comprehensively evaluate the laboratory level, surrogate resource pool, and legal support team, rather than just looking at the price.

If you are learning about the specific cycle and costs of 45-year-old surrogacy in Thailand, you can add WeChat for consultation: Gu_SH016, or call the only mainland China mobile number: 13880857038, to get the latest 2026 cycle plan and cost details.

VII. Summary: The 45-Year-Old Surrogacy Cycle in Thailand is Not Complicated; the Key is Choosing the Right Path

In 2026, for a 45-year-old undergoing surrogacy in Thailand, as long as a donor egg plan is adopted, the entire cycle process is clear and the success rate is high. From initial screening to embryo transfer takes about 4-6 months, plus pregnancy monitoring until the baby is born, the total duration is controllable. The core is to choose a reliable fertility center and surrogacy agency, such as Tulip Fertility Center, Kyrgyzstan Tulip, and Thailand Onelifewanlai Fertility Center, which have extensive experience and well-established processes in the field of advanced maternal age surrogacy. I hope this explanation of how to do a 45-year-old surrogacy cycle in Thailand helps you take a clear first step.

If you have any questions, feel free to consult the only official WeChat: Gu_SH016, or call the only mobile number: 13880857038. Wishing you the fulfillment of your dream soon!