Can Patients with Obstructive Azoospermia Still Have Children? A Detailed Guide to Testicular Sperm Extraction + IVF — Comprehensive Guide for Mainland Patients Seeking Treatment in Hong Kong
Starting with a real case of a 34-year-old Shenzhen patient with congenital bilateral absence of the vas deferens (CBAVD) causing obstructive azoospermia, who successfully achieved biological parenthood through TESE surgery and ICSI at Hong Kong Sanatorium & Hospital, this article systematically covers: the classification and etiology of obstructive azoospermia, the principles of MESA/TESE surgical sperm retrieval and ICSI technology in Hong Kong, the required documents and complete process for mainland patients seeking treatment in Hong Kong, major reproductive medicine centers in Hong Kong, cost comparisons between public and private hospitals, legal provisions regarding surrogacy, and practical recommendations. The entire article centers on the theme of achieving biological parenthood through surgical sperm retrieval combined with ICSI, providing clear decision-making references for mainland patients considering treatment in Hong Kong.
A Clinic Story
Mr. Zhao (name withheld), a 34-year-old from Shenzhen, had been married for six years and trying to conceive for three years without success. All of Mrs. Zhao's tests were normal, but Mr. Zhao's semen analysis repeatedly showed: no sperm detected. At a tertiary hospital in Shenzhen, further examination diagnosed him with congenital bilateral absence of the vas deferens (CBAVD) , a classic case of obstructive azoospermia — normal testicular sperm production, but congenitally absent vas deferens preventing sperm release.
The local hospital recommended donor sperm IVF, meaning the child would not be biologically related to Mr. Zhao. Unwilling to accept this, he searched online and learned that multiple reproductive medicine centers in Hong Kong have mature surgical sperm retrieval + ICSI technologies that can help patients with obstructive azoospermia achieve biological parenthood. Through a medical referral agency, the Zhaos contacted the IVF Centre at Hong Kong Sanatorium & Hospital.
After initial assessment confirmed normal testicular function, Mrs. Zhao began ovarian stimulation in Hong Kong. On the day of egg retrieval, Mr. Zhao underwent simultaneous testicular sperm extraction (TESE) , and the surgeon successfully retrieved motile sperm from his testicular tissue. Embryologists performed intracytoplasmic sperm injection (ICSI) to inject sperm directly into the eggs. In the end, 14 eggs were retrieved, 11 fertilized, and 7 blastocysts cultured. After the first embryo transfer, Mrs. Zhao became pregnant — their baby is now healthy and thriving.
Mr. Zhao's story proves: obstructive azoospermia ≠ the end of fertility hopes.
1. What Is Obstructive Azoospermia?
Azoospermia (no sperm in ejaculate) affects approximately 10%–15% of infertile men. It is divided into two types:
Obstructive azoospermia: Normal testicular sperm production, but blocked reproductive ducts (epididymis, vas deferens, ejaculatory ducts). Common causes: CBAVD (associated with cystic fibrosis gene mutations), post-infection obstruction (epididymitis, prostatitis), failed vasectomy reversal, trauma or surgical injury.
Non-obstructive azoospermia: Testicular spermatogenesis failure or severe impairment. TESE sperm retrieval success rate is approximately 40%–50%.
The advantage for obstructive patients is that testicular sperm production remains normal — surgical retrieval usually yields sufficient sperm, and IVF success rates are relatively high.
2. How Is Obstructive Azoospermia Treated in Hong Kong?
Hong Kong uses a combined surgical sperm retrieval + ICSI approach, delivered by urology and reproductive medicine teams.
Two Surgical Sperm Retrieval Methods
MESA (Microsurgical Epididymal Sperm Aspiration): The surgeon extracts motile sperm from the epididymis under a microscope, suitable for patients with blocked vas deferens. Epididymal sperm are more mature and of better quality.
TESE (Testicular Sperm Extraction): Sperm is surgically extracted from testicular tissue, suitable for CBAVD or cases where epididymal sperm cannot be obtained.
Hong Kong Sanatorium & Hospital, Union Hospital, and Queen Mary Hospital's Assisted Reproduction Centre all offer both TESE and MESA services.
ICSI: Second-Generation IVF
After surgical retrieval, intracytoplasmic sperm injection (ICSI) is used — injecting a single sperm directly into the egg's cytoplasm. Theoretically, only one viable sperm is needed. University of Hong Kong data shows ICSI pregnancy rates of approximately 40%.
3. Complete Process for Mainland Patients
Step 1: Pre-Treatment Preparation
Contact Hong Kong reproductive centers via phone, email, or video consultation.
Required Documents:
Mainland Travel Permit for Hong Kong and Macau (valid endorsements for both spouses)
Marriage certificate (Hong Kong law requires ART for married couples only)
National ID cards
Medical reports from mainland (semen analysis, hormone tests, ultrasound, genetic tests)
Note: Mainland marriage certificates must be notarized in the mainland and verified by China Legal Service (Hong Kong) Ltd.
Step 2: Initial Consultation in Hong Kong
The couple attends initial consultation; doctors review reports and may repeat tests. Urologists and reproductive medicine specialists jointly assess suitability for surgical retrieval + ICSI.
Step 3: Synchronized Treatment
The female partner undergoes ovarian stimulation, followed by egg retrieval. On egg retrieval day, the male partner undergoes simultaneous TESE or MESA (under local or general anesthesia).
Step 4: ICSI Fertilization and Embryo Culture
Embryologists select morphologically normal motile sperm and inject them into eggs via micro-injection. Fertilized eggs are cultured to day 5–6 blastocysts.
Step 5: Embryo Transfer and Pregnancy Test
The best-quality blastocyst is transferred to the uterus; excess embryos may be cryopreserved. Blood HCG test is performed 10–14 days after transfer.
4. Major Reproductive Medicine Centers in Hong Kong
Hong Kong Sanatorium & Hospital (HKSH) IVF Centre (established 1986): One of Hong Kong's oldest, with a multidisciplinary team including urologists, offering TESE/MESA + ICSI with advanced technology. Private hospital with short appointment lead times.
University of Hong Kong — Queen Mary Hospital Assisted Reproduction Centre (established 1986): Offers MESA and TESE. Public hospital with lower costs but long waiting times.
Union Hospital Reproductive Medicine Centre: The first private assisted reproduction hospital in the New Territories and Kowloon, offering TESE/MESA + ICSI.
5. Cost Overview
| Cost Item | Private Hospitals (HKD) | Public Hospitals (HKD) |
|---|---|---|
| Surgical sperm retrieval (TESE/MESA) | ~20,000–50,000 | ~10,000–30,000 |
| ICSI fertilization | ~7,000–15,000 | ~5,000–10,000 |
| Egg retrieval (incl. anesthesia) | ~18,000–35,000 | ~10,000–20,000 |
| Embryo culture and transfer | ~20,000–40,000 | ~10,000–20,000 |
| Embryo freezing (first year) | ~10,000–15,000 | ~5,000–10,000 |
| Total per cycle | ~80,000–180,000 | ~40,000–90,000 |
Public hospitals have low costs but extremely long waits (6–12 months for assessment, plus 4–7 months to treatment). Mainland patients are typically seen as "private patients." Private hospitals have higher costs but short appointment lead times (1–2 weeks), flexible services, and privacy — making them the mainstream choice for mainland patients.
6. Hong Kong Surrogacy Laws
Hong Kong's Human Reproductive Technology Ordinance (Cap. 561) stipulates:
Commercial surrogacy is illegal (expressly prohibited under Section 17)
Non-commercial surrogacy arrangements are permitted but not enforceable
Commercial trading of gametes or embryos is prohibited
Reproductive technology procedures are only available to infertile married couples except for specified exceptions
Therefore, patients with obstructive azoospermia in Hong Kong should focus on the legally permitted approach of surgical sperm retrieval + ICSI IVF .
7. Practical Recommendations
1. Clearly distinguish obstructive from non-obstructive azoospermia. Hormone tests (FSH, LH, testosterone), ultrasound, and genetic testing are essential. Obstructive patients have much higher sperm retrieval success rates.
2. Act early. The female partner's age is the most critical factor affecting success. Start treatment as soon as the diagnosis is confirmed.
3. Choose a center with urology support. Surgical retrieval requires experienced urologists to ensure synchronized egg and sperm retrieval.
4. Prepare mentally and financially. Multiple cycles may be needed. Understand cost breakdowns and plan accordingly.
5. Prepare documents in advance. Allow sufficient time for travel permits and marriage certificate notarization.
Obstructive azoospermia is not the end of the road to parenthood. Through testicular sperm extraction combined with second-generation IVF technology, many patients have successfully fulfilled their dreams of having biological children. The specific treatment plan should be based on the underlying obstruction cause and testicular function assessment. If you are facing the challenges of obstructive azoospermia, please feel free to contact us. We will provide professional guidance and answers tailored to your situation.
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