Essential guides
Azoospermia: diagnosis, causes and treatment options
Understand azoospermia, diagnostic assessment, genetic tests, Micro-TESE and ROSI, with a practical guide to discussing fertility options.
Read the guide ↗Information, research and individual care
A dream of a child.
A next step, together.
Understand an azoospermia diagnosis and explore assessment and treatment options. Discuss the next steps for you as a couple with Prof. Dr. Mehmet Çolakoğlu.
Where would you like to begin?
Start with your question. Find practical guides to understanding your diagnosis, exploring options and preparing for a consultation.
Azoospermia: diagnosis, causes and treatment optionsAzoospermia causes and diagnostic assessmentPreparing for your first azoospermia consultation
Understanding the diagnosis
No sperm seen on a semen test: how is the diagnosis confirmed?
A patient guide to repeat semen testing, examination of the centrifuged pellet and preparation after a zero-sperm result.
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Essential guides
What is Micro-TESE and when is it considered?
Learn about microscope-assisted sperm retrieval, assessment before Micro-TESE, its relationship with ICSI and questions to discuss before surgery.
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Understanding the diagnosis
AMH testing in men: can it inform sperm retrieval counselling?
Understand the 2025 azoospermia study first-authored by Prof. Dr. Mehmet Çolakoğlu and the limits of using AMH before Micro-TESE.
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Essential guides
What if no sperm are found after Micro-TESE?
Reviewing a negative Micro-TESE result: previous reports, decisions about repeat surgery and questions about further assessment and ROSI.
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Consultation and planning
What determines the cost of azoospermia assessment and treatment?
Understand the components of an individual budget without assuming that every person needs the same tests or procedures.
Read the guide ↗Selected research
Azoospermia Research Library
Explore azoospermia research by topic, year and study type. Read explanations of selected publications, scientific findings and source material.
AMH and biomarkers · 2025
Prof. Dr. Çolakoğlu’s AMH research
Two-centre retrospective cohort
Contribution to azoospermia researchRead the research explanation ↗
AMH and biomarkers · 2026
A new study reporting negative findings for AMH prediction
Retrospective clinical study
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Artificial intelligence and the laboratory · 2026
Detecting ultrarare sperm with artificial intelligence
Single-centre retrospective sample study
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Your Doctor
Clinical experience. Scientific contribution.
Get to know Prof. Dr. Mehmet Çolakoğlu’s professional background and contributions to research on azoospermia.
Meet Your DoctorScientific PublicationsVideo Library
Video Library
Male infertility
Advances in IVF and male infertility · 10’dan Sonra
IVF success
IVF success · Hanımeli
Causes of infertility
Causes of infertility · Hanımeli (12 April 2017)
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Start with your diagnosis, previous findings and goals as a couple. Complete the consultation form and the team will contact you.
The first step towards your dream of a child
Consultation and Contact Form
Use this form to request an appointment, arrange an initial consultation or ask a general question. Prof. Dr. Mehmet Çolakoğlu’s team will contact you.
Prof. Dr. Mehmet Çolakoğlu