Skip to content
  • Westchester: (914) 683-0000
  • New York City: (646) 380-4000
  • Connecticut: (203) 309-1000
  • New Jersey: (973) 969-2000
Search
Patient login
logo 2x
  • About
    • Our Team
    • Join the Maze Health Team
    • Hormone Testing
  • Semen Analysis
  • Sperm Cryobanking
  • Directed Donor Sperm Banking
  • Male Infertility Treatment
    • Varicoceles/Varicocelectomy
    • Azoospermia
    • Extended Sperm Search & Microfreeze (ESSM)
    • Sperm Mapping
    • Epididymal Obstruction
  • Action buttons
    • Contact Us
    • Patient login
  • About
    • Our Team
    • Join the Maze Health Team
    • Hormone Testing
  • Semen Analysis
  • Sperm Cryobanking
  • Directed Donor Sperm Banking
  • Male Infertility Treatment
    • Varicoceles/Varicocelectomy
    • Azoospermia
    • Extended Sperm Search & Microfreeze (ESSM)
    • Sperm Mapping
    • Epididymal Obstruction
  • Action buttons
    • Contact Us
    • Patient login
Contact

Azoospermia Treatment

When a semen analysis shows no sperm count (azoospermia) or very low levels of sperm (cryptospermia), it does not necessarily eliminate the possibility of a couple conceiving. New and exciting interventions may either help the man produce sperm or locate small numbers of sperm, not found on a regular semen analysis. Maze Health specializes in no Sperm/azoospermia for patients in Westchester, New York City, Connecticut and New Jersey.

Contact us for more information
  • Maze’s Unique Approach
  • Azoospermia Diagnosis
  • Sperm Delivery Issues
  • Sperm Production Issues
  • Next Steps When Sperm Can’t Be Retrieved
  • About Dr. Werner and Facility
  • Patient Stories

Maze’s Unique Approach

At Maze Health, we specialize in advanced diagnosis and treatment for azoospermia and complex male infertility, so a “no sperm” result on a semen analysis does not automatically mean you can’t have a biological child.
img azoospermia unique approach 2x
Accurate evaluation of azoospermia requires a true male fertility specialist to determine whether the issue is obstructive azoospermia (a delivery/blockage problem) or nonobstructive azoospermia (a sperm production problem). Led by board-certified urologist Michael Werner, MD, Maze performs a comprehensive workup — including blood testing and detailed analysis — to identify the cause and map the most effective next steps. Treatment may include strategies to retrieve and freeze sperm when delivery is the issue, or efforts to maximize sperm production through hormonal therapy and/or varicocelectomy when appropriate. You’ll leave with a clear, customized treatment plan built around your diagnosis, timeline, and family-building goals.

Azoospermia isn’t the end of the road

Many men fear an azoospermia diagnosis, but it does not necessarily mean you’ll never have a biological child. The key is an accurate diagnosis and a specialist-guided plan.

Two types of azoospermia: production vs. delivery

A complete evaluation determines whether azoospermia is:

  • Nonobstructive azoospermia: Sperm production problem
  • Obstructive azoospermia: Sperm delivery/blockage problem

How treatment differs based on the cause

  • If it’s delivery-related, the focus is often on retrieving sperm and frequently freezing (cryopreserving) it for future use.
  • If it’s production-related, the first step is often to maximize sperm production, commonly through hormonal treatment and/or varicocelectomy when appropriate.

The Maze difference: Specialist-led, customized plan

At Maze, Michael Werner, MD, and our expert team perform a thorough evaluation (including bloodwork and analysis) and then build a personalized treatment plan with you — based on your diagnosis and specific needs, not a one-size-fits-all approach.

Azoospermia Diagnosis

Just diagnosed with azoospermia? A “no sperm” result on a semen analysis can feel overwhelming, but it does not necessarily mean you can’t have a biological child. The most important next step is confirming the diagnosis with at least two semen analyses performed in a sophisticated male fertility lab, because sperm counts can fluctuate, and Maze has often found sperm when other labs reported none. From there, a male infertility urologist evaluates whether the cause is obstructive azoospermia (a delivery/blockage issue) or nonobstructive azoospermia (a sperm production issue). Once the cause is identified, the plan focuses on either retrieving and often freezing sperm or maximizing sperm production with targeted treatment. If sperm can be found, advanced reproductive techniques can be highly effective, often requiring only one motile sperm per egg to potentially fertilize it.

img azoospermia diagnosis 2x

I was just diagnosed with azoospermia. Now what should I do?

A semen analysis showing azoospermia does not necessarily mean you won’t be able to have a biological child. Once the cause has been determined and sperm production has been maximized, there are procedures that can sometimes locate sperm for use with advanced reproductive techniques, and it may take only one motile sperm per egg to potentially fertilize it.

Step 1: Confirm the diagnosis (repeat testing matters)

Before diagnosing total azoospermia, at least two semen analyses should be completed in a highly experienced lab. Sperm production can fluctuate, and men with extremely low sperm counts may be intermittently azoospermic. Maze has frequently identified sperm in samples where other labs found none.

Step 2: See a male infertility urologist

The next step is an evaluation with a urologist specializing in male infertility to determine whether the issue is:

  • Production-related: The testes are not making enough sperm to appear in the ejaculate (nonobstructive azoospermia).
  • Delivery-related: Sperm are being made but cannot enter the ejaculate due to blockage (obstructive azoospermia).

Step 3: Follow the right pathway based on the cause

  • If delivery is the problem → focus turns to retrieving sperm (and often freezing/cryopreserving it).
  • If production is the problem → focus is on maximizing sperm production first, then considering procedures that may help locate usable sperm.

Learn more about Michael A. Werner, MD

Michael A. Werner, MD. is the founder and medical director at Maze Health and specializes in the diagnosis and management of azoospermia and complex male infertility.

Sperm Delivery Issues (Obstructive Azoospermia)

If azoospermia is caused by a delivery problem, called obstructive azoospermia (OA), the testes may be producing sperm normally, but sperm cannot reach the ejaculate due to a blockage or missing duct.

iStock 621586682

At Maze Health, we diagnose the cause of obstruction and create a treatment plan that may include restoring sperm flow (when possible) or sperm retrieval with freezing (cryopreservation) for future use with IVF/ICSI. Common causes include congenital absence of the vas deferens (CBAVD), epididymal or vas deferens obstruction from infection, surgery, or vasectomy, ejaculatory duct obstruction, and ejaculatory dysfunction/retrograde ejaculation. Because OA often means sperm can still be obtained, timely specialist evaluation can preserve options and streamline next steps. Maze also offers advanced lab processing, including Extended Sperm Search & Microfreeze (ESSM) in select cases to improve the ability to find and preserve usable sperm.

What is obstructive azoospermia (OA)?

OA means sperm are being made, but a blockage (or missing duct) prevents sperm from entering the ejaculate. Treatment focuses on either restoring normal flow or retrieving sperm.

Common causes of delivery problems

  • CBAVD (missing vas deferens): Often associated with cystic fibrosis gene mutations; sperm is usually retrieved from the testis or epididymis. Genetic testing for CF mutations is important, and partner testing may be recommended.
  • Epididymal or vas deferens obstruction: Can result from infection, surgery (hernia/hydrocele repair), or vasectomy.
  • Ejaculatory duct obstruction: Blocked ducts prevent sperm from reaching the urethra; evaluation may include imaging and procedural options.
  • Ejaculatory dysfunction/retrograde ejaculation: Sperm may go backward into the bladder or emission may not occur normally, sometimes due to nerve injury, diabetes, spinal cord issues, or medications.

Treatment options (restore flow vs. retrieve sperm)

  • Vasal reconstruction: In some cases (especially post-vasectomy), microsurgery can restore sperm flow and allow for natural conception; success varies based on the time the since vasectomy and surgical findings.
  • Sperm retrieval (typically used with IVF/ICSI): Retrieved sperm are low in number and often slow-moving, so they are generally used with IVF + ICSI (injecting one sperm into each egg). Common approaches include:
    • MESA (Microsurgical Epididymal Sperm Aspiration): OR procedure that often yields more sperm and typically allows freezing multiple vials to reduce the need for repeat retrieval
    • Needle/Percutaneous testicular biopsy: Office-based, less invasive and lower cost; may only yield enough sperm for one IVF cycle and may need repeating

Ejaculatory duct obstruction + retrograde ejaculation testing

  • Transrectal ultrasound (TRUS): Helps evaluate ejaculatory ducts and seminal vesicles for dilation, cysts, or calcifications.
  • TURED: A transurethral procedure that can open/unroof an obstruction in select cases, sometimes restoring sperm to the ejaculate.

Medications + PEU for retrograde ejaculation

  • Medication regimens may help convert retrograde ejaculation to forward ejaculation (commonly including pseudoephedrine; other options exist).
  • Post-ejaculatory urinalysis (PEU): PEU tests urine after ejaculation to identify sperm in the bladder; in some cases, sperm can be harvested from prepared urine.

The Maze approach to sperm retrieval and freezing

If sperm are being produced but can’t get out, Maze can retrieve sperm via needle biopsy or surgical approaches. Extra sperm and tissue can often be processed and frozen, and in select cases, ESSM can help improve the ability to locate sperm later and support post-thaw survival.

Sperm Production Issues (Nonobstructive Azoospermia)

If azoospermia is caused by a production problem, called nonobstructive azoospermia (NOA), the testes are not making enough sperm to appear on a standard semen analysis. At Maze Health, the first goal is to identify any reversible causes and maximize sperm production through targeted hormonal therapy and/or varicocelectomy when appropriate, while avoiding anything that suppresses sperm production like testosterone replacement therapy (TRT) or anabolic steroids.

If sperm still aren’t seen on routine testing, Maze offers advanced options such as Extended Sperm Search & Microfreeze (ESSM) to locate and freeze rare sperm for use with IVF/ICSI, often summarized as needing only one sperm per egg. When ESSM is unsuccessful, sperm mapping can help predict whether sperm are present in the testes and guide next steps like micro-TESE, reducing unnecessary procedures. Maze is known for sophisticated male fertility diagnostics and advanced sperm-finding techniques designed to preserve every possible path to biological parenthood.
img sperm production issues 2x

What is nonobstructive azoospermia (NOA)?

NOA means sperm production is extremely low or absent, so sperm don’t show up on a routine semen analysis.

Step 1: Identify reversible causes and build a treatment plan

A specialist evaluation typically includes: physical exam (testis size can be a clue), hormone testing (FSH, LH, testosterone, estradiol, prolactin, TSH), and genetic testing (karyotype and Y-chromosome microdeletions). Some hormonal or thyroid issues are treatable; anabolic steroids and TRT can shut down sperm production and are often reversible once stopped. In rare genetic scenarios (certain Y microdeletions), sperm production may be impossible, helping avoid futile procedures.

Step 2: Maximize sperm production (when possible)

If there’s a reversible contributor, such as hormonal imbalance or a varicocele, Maze focuses on improving production. Treatment may include medications such as SERMs/clomiphene (often used when testosterone is <400) to stimulate the pituitary and support sperm and testosterone production. Varicocele repair may meaningfully improve sperm production in select men.

Step 3: Find and freeze rare sperm from the ejaculate (ESSM)

If routine semen analysis still shows no sperm, Maze can perform Extended Sperm Search & Microfreeze (ESSM), an intensive process that examines the full specimen to locate rare sperm, then isolates and freezes them for later use with IVF + ICSI.

Step 4: If no sperm are found in the ejaculate, evaluate the testes

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

If no sperm are found after definitive retrieval

If sperm cannot be found after appropriate interventions and retrieval attempts, the next step is a discussion of family-building options with your care team.

Next Steps When Sperm Can’t Be Retrieved

When definitive sperm retrieval has been performed and no sperm are found, Maze Health helps individuals and couples understand every realistic path forward — medically, emotionally, and logistically. As a reproductive urologist who also runs a reproductive urology laboratory, Michael Werner, MD, focuses first on helping patients achieve a biological child, including advanced options like IVF with ICSI when even rare sperm can be identified. If a man produces no sperm, many families still achieve parenthood through thoughtfully chosen alternatives such as a designated (known) sperm donor, an anonymous donor, adoption, or child-free living — all valid outcomes depending on your goals and values. Maze is one of the few labs licensed in New York State to store sperm for designated donors, with required STI and genetic testing and a physical exam. Support resources and counseling can also help couples process decisions that may evolve over time.

If no sperm are found after definitive retrieval

If sperm cannot be found even after appropriate retrieval attempts, it’s time to discuss other options. Many couples initially feel strongly about using only the male partner’s sperm, but feelings can change as the reality becomes clearer — and many families are very happy with the path they choose next. Support groups and counseling resources can help.

Family-building options to consider

  • Designated (known) sperm donor: A donor chosen by the intended parent(s) — heterosexual couples, gay couples, or single individuals. In NYS and federally, this typically requires STI testing, genetic screening, and a physical exam. The lab process is detailed, but it’s usually straightforward for the donor.
  • Anonymous sperm donor: Donor sperm obtained through a sperm bank. Donors are carefully screened, though direct-to-consumer genetic testing is changing what “anonymous” means over time.
  • Adoption: A meaningful option, though often more expensive, time-consuming, and difficult, especially for newborn adoption.
  • Child-free living: A valid decision for many couples and individuals, sometimes influenced by personal or religious values.

If sperm are found: IVF/ICSI pathway

When sperm are found (including rare sperm identified through advanced lab techniques), they are typically used through IVF with ICSI, where a single sperm is injected directly into an egg. Eggs may be freshly retrieved or previously frozen and may come from a female partner or a donor. If ESSM has been performed, sperm may be used from frozen storage or, for local IVF centers, as fresh sperm collected on the day of egg retrieval.

About Dr. Werner and Maze

img about dr werner 2x.webp

About Dr. Werner

With over 25 years in clinical practice, Dr. Michael Werner is a board-certified urologist specializing in sexual and reproductive medicine. His work is defined by thoughtful care, advanced treatment strategies, and a long-standing commitment to helping patients achieve better health and quality of life.

About Maze

Maze Sexual & Reproductive Health is a specialized medical practice dedicated to men’s health, women’s health, sexual medicine, and fertility care. Our approach emphasizes personalized care, clinical excellence, and innovative solutions that help patients feel informed, supported, and empowered.

img about maze 2x r1.webp
new york city 07 1x.webp
new york city 05 1x.webp
new york city 06 1x.webp
new york city 04 1x.webp
new york city 03 1x.webp
new york city 02 1x.webp
new york city 01 1x.webp
westchester 10 1x.webp
westchester 09 1x.webp
westchester 08 1x.webp
westchester 07 1x.webp
westchester 06 1x.webp
westchester 05 1x.webp
westchester 04 1x.webp
westchester 03 1x.webp
westchester 02 1x.webp
westchester 01 1x.webp

Maze facility

Maze’s modern facilities in Westchester, NY, and New York City are designed to provide expert care in a comfortable, private setting. Our on-site diagnostics, advanced therapies, and coordinated care allow patients to receive comprehensive services in one location.

Areas served

Serving Westchester County, New York City, Connecticut, and New Jersey, Maze supports patients locally and from out of state. Many seek our care for specialized expertise, with flexible options that include both in-person appointments and telemedicine consultations.

bg map sm

Patient Stories

Free consultation

I originally gave their NYC offices 1 star but after I posted that review, Dr. Werner called me, apologized and then spent almost an hour on the phone with me finding out in detail what my issues were with the clinic and my experience. At the end of our call he asked me to come in for a free consultation where

a) he showed me all the improvements they’d made; and

b) he discussed all the options I had.

Again, he promised to follow up in a month…and he did. So while I wish the entire experience had been excellent, his willingness to address the issues makes me willing to upgrade my review to 3 stars.

Read more

S.L, NY, Age 48

Well Organized

Everything was well organized, result was ready on time…and I think that the online service also helped save time.

Read more

K.A, CT, Age 43

This Is The Best Place To Go!

This is the best place to go! The staff is very nice. The price is also very affordable. Five stars!

Read more

K.Z, NY, Age 32

My experience with Dr. Werner and the entire staff was EXCELLENT!!

Everyone was very knowledgeable without making you feel intimidated. They took the time to explain everything and made sure that what we discussed was understood, they made sure I was comfortable with the testing, procedures and the treatment we decided on. I say we because they don’t force any one option, they make sure you are informed and educated about all options to best help you. The office staff are always friendly and helpful. Maze laboratories definitely makes an awkward, stressful and overwhelming situation much easier to talk about and understand.

Read more

ER, NY, Age 36

View All Patient Stories

Have A Question?

Please call 914-683-0000 or complete the form below to schedule a consultation

  • HAVE A QUESTION?

    Please call 914-683-0000 or complete the form below.
  • Should be Empty:

Maze Labs Blog

img blog Fertility Preservation for Transgender Women How ESSM Offers New Hope After Hormone Therapy

Fertility Preservation for Transgender Women: How ESSM Offers New Hope After Hormone Therapy

The Challenge of Fertility Preservation for Transgender Women At Maze Labs, we recognize that fertility preservation can be especially complex for transgender

Read More
Happy Caucasian family with a small child laughs and smiles.

Let’s Get To Know Clomid

The use of Clomid to increase testosterone levels has been in practice for many years.  Clomid is the preferred treatment to increase

Read More
Colored Pregnancy test on colored background, top view with copy space

Self-Insemination – A Natural Pregnancy Hack

Have you heard of Self-Insemination? Self-Insemination is a process in which a man will ejaculate at home into a sterile cup, draw

Read More
logo Footer

Maze Laboratories

Maze Laboratories is a comprehensive, state-of-the-art facility specializing in semen analysis and sperm cryobanking. Part of the larger Maze Health group, Maze Labs was founded in 1994 by Michael A. Werner, MD, a board-certified urologist specializing in male sexual dysfunction and infertility.

Harvard University coat of arms.svg.webp
beth israel 2x.webp
boston medical 2x.webp
boston university 2x.webp
jts 2x.webp
mount sinai pt 2 2x.webp
montefiore 2x.webp
mount sinai 2x.webp
st lukes hospital 2x.webp
ucsf school of medicine logo 2x.webp
westchester medical center 2x.webp
white plains hospital 2x.webp

Westchester

  • 440 Mamaroneck
    Avenue, Suite 201
    Harrison, NY 10528
  • (914) 683-0000

New York City

  • 633 Third Avenue,
    Suite 9B
    New York, NY 10017
  • (646) 380-4000

Quick Links

  • Maze Health Group
  • Maze Men’s Health
  • Maze Women’s Health
  • Maze Medical Fitness

Connecticut

  • (203) 309-1000

New Jersey

  • (973) 969-2000

navigation

  • About Us
  • Blog
  • Sperm Cryobanking
  • Azoospermia/ESSM
  • Semen Analysis
  • Directed Donor Banking
  • Varicoceles/Varicocelectomy
Facebook-f Tiktok
Patient Login
Contact Us
© 2026 Maze Laboratories. All Rights Reserved.
  • Privacy Policy
  • Website by Pronto
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.