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Welcome to Stork Fertility Center



Established in 2000, Stork Fertility Center is a leading center dedicated to providing patients with personal &  precision IVF (PP-IVF) solution.
Our centers in Taipei and Hsinchu offer the most advanced techniques in IVF enhancing pregnancy rate to 80%, including IMSI, PGS, PGD and ERA. With Asia's largest egg bank, a database of 300 egg donors, we've achieved more than 10,000 successful cases with 90% of thawing survival rate.

    Our holistic services and treatments are delivered by a team of approximately 300 experienced professionals. We strive to make all effort to ensure you a smooth fertility journey.

More information about our Oocytes Recipient program:


More information about our Oocytes Cryopreservation program:



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[Patient Testimonial] I Believe Stork, I Chose Egg donation


With the assistant from Stork Fertility Center, I got the 10 weeks pregnancy after second transfer. Although I was worried when I had bleeding during my early pregnancy, I felt grateful at this very moment.

We got married when we were 40 years old, so we started our IVF treatment late.
We tried our best for this treatment. However, advanced age made treatment more challenge. We couldn't retrieve the eggs with better quality. Meanwhile, our Japanese doctor suggested us to try the egg donor program in Taiwan. In this way, I could still be pregnant and deliver. Thus, I decided to try and meet my last hope with positive mood.

Before we made the final decision, my husband was worried about my feelings about receiving the eggs from donor. "Do I love this kid?" would be our biggest concern. However, the answer is No, because this kid will have the genes from my husband, and grow up in my belly. I believe I must love him/her so much. In addition, we regretted late start for our IVF treatment. I won't let it happen again. So, I decided to email to Celine, a consultant of Stork.

Because Stork Fertility Center was recommended by my Japanese doctor, that's why I didn't feel any restless. I got quick reply from the Stork regarding the schedule for my doctor appointment. The communication went very well. It only took us about 45 days from the first email to the email of confirmed doctor appointment. It’s our first time to visit foreign clinic, so we were nervous. Nevertheless, we felt relaxed and comfortable after we walked into the clinic which was warm, clean, and bright.

As we first visited, our consultant, Celine was always there for us. We didn't need to worry about the language issue. She was a friendly, clever, and reliable person. The Most important thing was she had lots of experience in the field of infertility. Whenever I had questions, she always had answers for me. Also, she would remind me when I missed something, so I relied on her so much. When I’ve been transferred, there was another consultant who was an outgoing girl and could speak Japanese fluently. She helped us a lot and kept encouraging us, and made me relax.

My doctor is Dr. Lai who is a warm man. He told me that "Believe in yourself, you could bring baby back." It really touched me, and I started my treatment with confidence. I went Back to Japan for my check-up, and then mailed the result to the Stork. I received the medicine for transferring and the date of next doctor appointment quickly. With rapid conversation, sincere concern, well equipment, I believe that's why Stork has high pregnancy rate. Based on extensive experiences, they could be so confident to make the case successfully.

Although, I haven't delivered yet, I really appreciate Dr. Lai, Celine, and everyone who from Stork Fertility Center.

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A 43-year-old woman break through the predicament by IVF 3.0 Plus.

She's 47 years old this year. Only left one chromosomally normal blastocyst. 

With great confidence and last transfer hope, her blood test for pregnancy is...

Written by Dr. Hsing-Hua Lai.

What will you do if you still want to become a mother when you are 43 years old? There are two options. One is as fast as high speed rail, you can hold your child after one year; the other takes 3 years of trying and cost 1.5-2 times of money. Most of people will choose first option without a doubt. However, her choice was different. It was not because of she want to cut off her nose to spite her face. Neither was she rich. It's because she didn't want to undergo oocyte donor program.

How hard is it to become a mother for a 43-year-old woman through IVF? According to a paper from 2012's Human Reproduction, a top European medical journal, the statistic showed that a 43-year-old woman need 120 oocytes to accomplish this goal. And under our experience, only 1/7 of the pretty blastocysts from appearance will be euploid (chromosomal normal) after PGS test. The pregnancy rate of transfer one euploid blastocyst is around 60-70%. Therefore it is better to collect at least 2 euploid blastocysts before transfer. But the question is, how do you collect 120 oocytes at this age? It is also very hard to collect two chromosomal normal blastocysts. Because her AMH was below 0.13. The average number of oocytes picked up every time would be 1-2. And she needed 42 oocytes to make it!

Jesus! How long would it take? She needed a lot of courage and determination to make this choice.

We used mild stimulation and natural cycle for her oocyte retrieval treatment. Because the quality was more important that number in her case. If we used strong stimulation, the number of oocyte might be greater but the quality might be disappointed. This kind of treatment design also helped her to save the medication fee for NTD$ 40,000-50,000 each time.

It took her one year to undergo 10 times of oocyte retrievals. 13 oocytes became 5 blastocysts after embryo culturing. There were 6 times that the oocytes couldn't reach the stage of blastocyst, no blastocyst could be transferred or be preserved. This kind of outcome is the fear why a lot of fertillity center are afraid of culturing to the stage of blastocyst. Because it is more challengeable.

Appearance will lie. Pretty blastocysts from the appearance is not equal to chromosomal normal. There were clients who waited expectantly after 15 days of transfer one "pretty blastocyst" but failed. When they asked doctors, the replies always came with a "Maybe". Maybe because of chromosomal abnormal, wrong transfer timing, autoimmune factors, inflammation...etc. Without finding out the truth, these answers could not help next implantation. It was like gambling, which brought more defeats until we give up trying.
The time after implantation until pregnancy test is the most pressuring. If the embryo is chromosomal abnormal, it is basically an invalid medical behavior. Why don't we choose a right embryo and transfer it at the right time? 

She was lucky! 13 oocytes became 5 blastocysts. And the best part was there were two chromosomal normal blastocysts! This outcome apparently broke the medical reports and our past experiences!

When she was 45 years old, she tried to transfer one euploid blastocyst but failed. At that time, there was no examination to get the right implantation timing precisely. Global physicians can only use their experience to guess that all women were same. The implantation time was 120 hours after using progesterone. But the question is that is this really the right time for every women?

According to latest research, there are 30% of people have different timing. The implantation window might be 132 hours, 144 hours, 108 hours or even 96 hours. Which means 1/3 of women are exceptions. How stupid is it to use the formula for every women!

Since 2016, we start to do ERA (Endometrial receptivity Array). She accepted the examination after resting for one year and nine month. The result showed that her best timing to do implantation was after taking  progesterone 144 hours. And this might be the main reason for her fail last time. With only one normal blastocyst left, she underwent the implantation when she was 47 years old. Fortunately, the pregnancy test was positive. Her βHCG was 2637. And finally gave birth to a healthy baby girl on Oct. 5th, 2018. After 4 years of hardworking, she finally got to hold her baby in her arms.

IVF 3.0 plus is the key point to make her dream came true. Imagine that if she tried second implantation without doing ERA, there was great chance that she would fail. In that situation, she might have to choose donor program or just quit. Therefore, PP-IVF (Personalized Precision IVF) is the solution!


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A 47 year-old woman, how did she make a pair of boy and girl twins?


At the age of 47, would you still have courage to embrace a dream of having a child? More and more women missed their best time for pregnancy and don’t know what to do. Besides, how much time and money would cost with such an age?



Frankly, I won’t encourage people who are older than 43 to try IVF with their own eggs. The reason is low successful rate accompanied with plenty of cost and time. Using donated eggs would definitely be the first choice for them. However, the question is, “Could you accept it?”. If the answer is negative, what is your plan B? I usually ask my clients in dilemma, “Are you sure that you are determine to do this?”. Only if the answer is positive, I will agree to start this last journey before their last stop – oocyte recipient program.

To make a commitment to my clients, I’ll try calculating the estimated oocytes number need per baby for my younger clients. However, for clients over 40, I will precisely let them know how much oocytes they might need for 1-2 blastocysts with no chromosomal abnormality. In the meantime, I will ask them to set up a stop loss point, which is the spirit of PP-IVF (personalized-precision IVF).

C’est la vie! Who would know that a woman with such a beauty would only meet her Mr. Right in her early forty? At this point, she finally realized an important truth. She should have done the oocyte cryopreservation when she was younger.

IVF 3.0+ is the only choice for her right now. It cost her 1.5 years for 23 oocyte retrievals and 44 oocytes. In the end, she got 6 blastocysts with great appearance (graded above BB). However, the result of PGS showed that 5 were abnormal and 1 has no signal.
What could we do with this situation? We have no choice but take the rest 5 blastocyst, which are not qualified for biopsy, and the blastocyst with a no signal result to do the 2 times transfer.

As you might be curious, how could she do the oocyte retrieval for 23 times in a year? Indeed, to speed up the collection of oocytes, she often need to do the operation twice a month. We call this the D-OPU, which is an innovative protocol for clients with AMH lower than 0.8.

With such a hard work, how can she give up on ERA? The result of ERA indicate that her window of implantation is 132 hours, which is different from most women. With the reference of ERA, we have a success on the first transfer. Unfortunately, the development of embryos did not proceed. The cause of this failure might be the high probability of chromosomal abnormality. They decideded to transfer last 3 blastocysts for the second time transfer. After about 15 days, it turns out the level of beta-HCG is 2635! Although the index of HCG is quite inspiring, we still don’t know the chromosome of the baby is normal or not. Until she has done the Amniocentesis, I finally rest assured and realized that she might be “the oldest pregnant woman with boy and girl twins” in Taiwan. She also broke the record of Stork Fertility Center in 2011: 47-year old IVF with own eggs. I’m extremely grateful for the hard work of our embryologists, the God’s will. Most important of all, her determination and the help from her friend who introduce her to Stork Fertility Center.

There are full of stories behind every lucky pregnancies. Rewind the history of this patient, there are too many “what if?” questions in it. What if she didn’t hesitate to freeze her eggs when she were younger? What if she didn’t meet her helping friend? What if the blastocysts without doing PGS are all chromosomal abnormal? What if we perform biopsy on unqualified blastocysts, and it end up leading to miscarriage? What if she didn’t do the ERA? If she insisted doing transfer on the wrong time, efforts of 23 operations might vanish.

What is the “unseen” question behind every “what if”?

How long and how much would it cost for clients over 43 years old to have a baby? How do we get the answer of this question? My answer is, “You have to ask the correct question.”. The reason is that you can only find a way out in correct direction. People frequently ask, “Where can I find the cheapest IVF treatment? ”. The reality is that it’s not possible to do a skin-deep comparison on professional things. There are too many “unseen” factors under the table. My clients who are considered good-lucked ask the key question in another way, “What is the cheapest way to bring back a baby?”. The difference is on the denominator, the times for the treatment and the number of baby respectively. Asking the right question, both the doctor and the clients are on the same page. With the same goal, we can determine to bring a baby back.

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