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Home/Men's Health/DNA Fragmentation Test in London

Men's Health

DNA Fragmentation Test in London

Sperm DNA Quality Analysis | Results in 24 Hours. Your semen analysis may look normal—but sperm DNA damage can still affect fertility outcomes. Our DNA Fragmentation Test provides clear, actionable insight into your reproductive health and helps guide your next steps.

  • TAT: 24 Hours
  • Sample: Semen
  • Accurate results for peace of mind
  • Discreet & private clinical service
  • Same-day collection available
£399.00
MLSDF
Turnaround1-2 day
Sample typeSemen
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Results reviewed by our clinical team

What's included

Standalone analysis. Clear DFI result report, doctor-led interpretation notes and referral support for specialists.

  • Sperm DNA Fragmentation Index (DFI)
  • Doctor-led interpretation notes
  • Referral support for specialists
Suitable for Couples trying to conceive without success, men with normal semen results but no pregnancy, recurrent miscarriage, failed IVF/ICSI, men over 40, and those with lifestyle risks or a known varicocele.

Don’t Leave Fertility to Chance

Standard semen analysis may look normal, but sperm DNA damage can still affect fertility outcomes. If you are searching for a sperm DNA fragmentation test in London, male fertility testing, a DNA damage sperm test or private semen analysis in London, you are in the right place.

  • Accurate results for peace of mind
  • Discreet & private clinical service
  • Same-day collection available

What Is DNA Fragmentation in Sperm?

DNA fragmentation refers to damage or breaks in the genetic material of sperm cells. This is a critical factor because even sperm that appear normal under a microscope can carry significant DNA damage. High levels of fragmentation may lead to:

  • Reduced chances of natural conception
  • Impaired embryo development
  • Increased risk of miscarriage

Why it matters: standard semen analysis measures count, motility, and morphology, but it doesn't look inside the “cargo” (the DNA). This test completes the fertility picture.

Why DNA Fragmentation Matters

A standard semen analysis is a great starting point, but it only looks at the surface. To truly understand male fertility, we must look deeper into the genetic integrity of the sperm. Standard analysis checks sperm count (quantity), motility (movement) and morphology (shape), and does not assess DNA quality. High DNA Fragmentation (SDF) is linked to:

  • Reduced natural conception rates
  • Lower IVF / ICSI success rates
  • Increased risk of embryo arrest
  • Higher miscarriage risk

Who Should Consider This Test?

Male factor fertility contributes to roughly 50% of conception challenges. This test is highly recommended if you:

  • Have been trying to conceive without success
  • Have normal semen results but no pregnancy
  • Have experienced recurrent miscarriage
  • Have had failed IVF / ICSI cycles
  • Are over the age of 40
  • Have lifestyle risks (smoking, obesity, heat exposure)
  • Have a known varicocele
  • Want deeper insight before starting assisted reproduction

Understanding your SDF levels can be the turning point in your fertility journey.

How the Test Works

Our laboratory uses advanced, validated methods (such as SCSA, or SCD) to provide a precise measurement of genetic integrity.

  • Collection: Sample provided after 2–5 days of abstinence.
  • Analysis: Specialized staining and microscopy detect breaks in the DNA.
  • Measurement: Damage is calculated as a DNA Fragmentation Index (DFI).

What is DFI? The DNA Fragmentation Index (DFI) represents the percentage of sperm cells with damaged DNA. A lower DFI generally correlates with better reproductive outcomes.

Understanding Your Results

Typical DNA fragmentation ranges and their general clinical significance:

  • <15% – Excellent: High potential for natural conception and IVF success.
  • 15–25% – Fair: May impact timing to pregnancy or assisted success rates.
  • >25% – Poor: Strongly associated with lower fertility and higher miscarriage risk.

Interpretation depends on the testing method, clinical context, and overall fertility profile.

Our DNA Fragmentation Service

  • Sample: In-clinic or home (within 45 mins)
  • TAT: Fast 24-hour turnaround
  • Protocol: Strict lab accuracy standards
  • Included: Clear DFI result report, doctor-led interpretation notes, referral support for specialists

How to Prepare

To ensure the most accurate results, please follow these guidelines:

  • Abstain from ejaculation for 2–5 days.
  • Avoid heat (hot baths, saunas, laptops on lap).
  • Inform us of any medications or supplements.
  • Avoid intense exercise or fever before testing.
  • No lubricants or condoms during collection.

Pricing & Packages

  • DNA Fragmentation Test (standalone analysis): £399.00
  • Comprehensive Fertility Profile (recommended): £674.00 – detailed semen analysis, full male hormone panel and DNA Fragmentation Index (DFI). Book Package

Location & Booking

Marylebone Diagnostic Centre, 73 Baker Street, London. Results turnaround: within 24 hours. Call or WhatsApp: +44 7495 970109. Email: info@marylebonelab.co.uk.

Take Control of Your Fertility Journey

Concerned about your fertility? Don’t leave it to chance. Accurate, discreet, and clinically valuable results delivered within 24 hours. £399.00. Private & Confidential • Same-day appointments available

Book Your DNA Fragmentation Test Now

Frequently asked questions

What is a DNA Fragmentation Test for sperm?
A DNA Fragmentation Test measures the level of damage in the genetic material of sperm. Even sperm that appear normal under a microscope may carry DNA damage, which can affect fertility and embryo development.
What causes sperm DNA fragmentation?
Common causes include oxidative stress, smoking/alcohol, poor diet, heat exposure (laptops, hot baths), varicocele, infections, environmental toxins, and ageing (especially over 40).
What are normal DNA fragmentation levels?
<15% – Low (optimal); 15–30% – Moderate (may impact fertility); >30% – High (associated with poorer fertility outcomes).
Can sperm with DNA fragmentation still fertilise an egg?
Yes, but high DNA damage may reduce the chances of successful fertilisation, implantation, and healthy embryo development.
How is this test different from a semen analysis?
A standard semen analysis assesses count, motility, and shape. A DNA Fragmentation Test evaluates the actual genetic integrity inside the sperm.
Is the test useful before IVF or ICSI?
Yes. It is often recommended before assisted reproduction, especially in cases of unexplained infertility or previous IVF/ICSI failure.
Can lifestyle changes improve sperm DNA quality?
Yes. Improvements in diet, sleep, stress management, exercise, and avoiding heat/toxins can help reduce DNA fragmentation over time.
Can supplements reduce DNA fragmentation?
Antioxidants such as Vitamin C, Vitamin E, CoQ10, Zinc, and Selenium may help reduce oxidative stress and support sperm DNA integrity.
How long should I wait before retesting?
Around 3 months, as this reflects one full sperm production cycle (spermatogenesis).
Who should consider this test?
Recommended for those trying to conceive for 6-12+ months, men over 40, those preparing for IVF/ICSI, or those with a history of miscarriage.
Is the test painful or invasive?
No. It only requires a semen sample and involves no physical discomfort.
How accurate and reliable is the test?
Highly accurate when performed using validated lab methods like SCSA. Results depend on proper sample handling and lab quality.
How fast are the results?
At Marylebone Diagnostic Centre, results are typically available within 24 hours.
Do I need to book in advance?
Yes. Advance booking is required to ensure a private appointment slot and proper lab preparation.
Can I take this test if I live outside London?
Yes. Courier collection may be available under specific conditions, or you can travel to our Marylebone clinic for the sample collection.
If I have high DNA fragmentation, what happens next?
Next steps may include lifestyle changes, antioxidant therapy, advanced sperm selection (ICSI), or repeat testing after intervention.
How often should I repeat the test?
If undergoing treatment or lifestyle changes, repeat testing after 3–6 months is generally recommended.
Does this test guarantee answers?
No. It provides valuable insight but must be interpreted alongside other fertility assessments by your clinician.
Does MDC provide fertility treatment?
No. We are a diagnostic centre. We provide accurate results to support your doctor or fertility specialist.
Marylebone Diagnostic Centre
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