Simira Diagnostics
  • NABL accredited
  • SCD halo method
  • Report in 5 days

The test a semen analysis can't do

Sperm DNA Fragmentation Test in Navi Mumbai

A semen analysis counts your sperm and watches them swim. This test looks inside them, at the DNA that carries half of your baby's genes.

₹6,000₹7,500

₹200 off at checkout

Semen analysis worth ₹1,500 included free

Healthy DNA: two unbroken strands

Look inside a sperm

Inside every sperm

  1. 01 · The package

    Every sperm carries a strand of DNA

    Coiled tight inside the head: half of the genes your baby will have.

  2. 02 · The blind spot

    A sperm can look perfect and still carry broken DNA

    Count, movement and shape don't show what's inside. The WHO semen manual notes that DNA damage is only partly related to semen quality.

  3. 03 · The damage

    Breaks build up quietly

    Heat, smoking, infection, a varicocele and age are among the causes linked to sperm DNA damage.

  4. 04 · The measure

    The DFI test puts a number on it

    Your DNA Fragmentation Index is the share of sperm with broken DNA. On our report, below 15% is normal and above 30% is high.

    • Below 15%: Normal
    • 15–30%: Moderate
    • Above 30%: High

Under the microscope

A semen analysis sees sperm.A DFI test sees their DNA.

Move the lens over the slide. In the sperm chromatin dispersion (SCD) test we use, sperm with intact DNA form a halo; sperm with fragmented DNA form a small halo or none.

Halo: intact DNASmall or no halo: fragmented DNAIllustration. Your report gives the share of sperm with fragmented DNA.

Why it matters

High DNA fragmentation is linked to

  • How the embryo develops

    The WHO semen manual notes that DNA damage may affect embryo development, implantation and pregnancy.

  • Failed IUI or IVF

    European urology guidelines link high DNA damage to lower pregnancy rates after IUI and poorer IVF results.

  • Repeated miscarriages

    High DNA fragmentation is associated with recurrent pregnancy loss, so guidelines advise testing the male partner.

  • Unexplained infertility

    It has been linked to infertility in men whose semen report is normal.

The evidence

What WHO and fertility guidelines say

A semen report alone can't predict fertility

“For an individual patient, a semen analysis is never prognostic of fertility…”

WHO semen manual, section 1.2

DNA testing adds what a semen report misses

“Since [sperm DNA fragmentation] is only partially related to semen quality, it could represent an important addition in the work-up of male infertility…”

WHO semen manual, section 3.2

DNA damage can affect the embryo and the pregnancy

“…multiple meta-analyses published in recent years indicate that [sperm DNA fragmentation] may affect embryo development, implantation, and pregnancies in both natural and assisted reproduction.”

WHO semen manual, section 3.2

European Association of Urology

Guidelines on Sexual and Reproductive Health, 2026

Strong recommendation

“Perform sperm DNA fragmentation (SDF) testing in the assessment of couples with recurrent pregnancy loss from natural conception and failure of ART or males with unexplained infertility.”

ART is assisted reproduction, such as IUI and IVF. Source(opens in a new tab)

American Urological Association & ASRM

Diagnosis and Treatment of Infertility in Men, 2020 (amended 2024)

“Even with a ‘normal’ [semen analysis], a sperm that appears morphologically and functionally normal may … have a high level of DNA fragmentation.”

It advises testing the male partner for DNA fragmentation after recurrent pregnancy loss. Source(opens in a new tab)
Read the WHO semen manual(opens in a new tab)

Your result

How your DFI is read

Drag the slider to see a result. The sperm around you change with it.

Normal

Most sperm carry intact DNA.

Ranges as printed on our report. Your doctor reads your DFI with the rest of your results.

Is it for you?

Who should take the test

Guidelines recommend it after

  • Two or more miscarriages
  • A failed IUI or IVF cycle
  • Infertility with no clear cause

European Association of Urology, 2026: strong recommendation.

Also worth asking about if you have

  • A normal semen report, but no pregnancy yet
  • Varicocele (swollen veins in the scrotum)
  • Smoking, obesity or regular heat exposure
  • Aged 40 or over
  • Past genital infection or chemotherapy

Book the test

One sample. Two reports.

Your sample is collected in a private room at our centre. A complete semen analysis reaches you in 4 hrs, and your DNA fragmentation report in 5 days, both on WhatsApp.

  • Fully confidential
  • NABL accredited
  • DNA report in 5 days
Only need a semen analysis? See the semen analysis page

Recommended

Sperm DNA Fragmentation

₹6,000₹7,500

Semen analysis worth ₹1,500 free₹200 off at checkout
  • DNA Fragmentation Index (SCD method)
  • 5-level halo classification
  • Annotated microscope images of the DNA analysis
  • Visual charts against reference ranges
  • Doctor-ready for IUI / IVF / ICSI planning
  • Complete semen analysis, report in 4 hrs
  • DNA report on WhatsApp in 5 days

Not sure the DNA test is for you?

Leave your number and tell us what your doctor has advised. We'll call you back to talk it through, in confidence.

  • Callback within 15 minutes
  • Fully confidential
  • No charge for advice

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Frequently Asked Questions

Quick answers about the sperm DNA fragmentation test, preparing for it and your report.

4 Simple Steps

How your DNA
fragmentation test works

From booking to report, in four simple steps.

  1. Booking a test on a phone

    Book or Ask for a Callback

    Book the test online, or leave your number and we will call you back with a slot.

  2. Reception of a Simira Diagnostics centre

    Visit Your Simira Centre

    Come in after 2–7 days of abstinence. Your sample is collected in a private, comfortable room.

  3. Lab technician examining a sample under a microscope

    DNA Tested in Our Lab

    Your sperm are tested with the SCD method and sorted by their halos under the microscope.

  4. Couple viewing their report on a phone

    Two Reports on WhatsApp

    Your semen analysis report reaches you in 4 hrs; the DNA fragmentation report in 5 days.