The most accurate male fertility test available. Exclusively provided by Examen.


What is the SpermComet®?

SpermComet® is a male fertility test. It looks at the most important part of your sperm, the DNA. Your sperm DNA contains the instructions that will make your baby look and act like you. Sperm DNA can be damaged during sperm production and storage, causing the DNA molecule to break into smaller fragments. This is known as DNA fragmentation. Sperm DNA fragmentation can affect your ability to get your partner pregnant or have a healthy baby. SpermComet® measures the amount of DNA fragmentation in your sperm.

Some doctors will suggest a semen analysis as the only test for male fertility. Semen analysis measures the number of sperm in an ejaculate (sperm count), what they look like (morphology) and how quickly they swim (motility). This is important information to start with, but it doesn’t tell anything about the quality of the DNA you will pass on to your child. You need both tests to get the full picture of your sperm health.

Behind the Science

Why get tested?

Even healthy sperm have some DNA fragmentation, but it’s the amount of fragmentation that matters. Badly damaged sperm DNA is linked to problems including taking a long time to get pregnant or having a miscarriage. High amounts of sperm DNA fragmentation also reduce the success of fertility treatments like IVF. The good news is that men make new batches of sperm every three months and simple lifestyle changes can often help you improve the quality of your DNA.

SpermComet® can give peace of mind to any man concerned about his fertility. Whether you’re thinking about starting a family, have been trying for a while, or have had previous fertility treatments SpermComet® provides vital information to help you on your journey.

How it works

Order Online

Select your Hub. Your sample collection kit will be dispatched within 1-2 business days

Book an appointment

Book an appointment at your selected Hub to produce or drop off your sample

Produce a sample

Produce your sample at home or your selected Hub. Samples produced at home must reach the Hub within 1 hour

Receive your results

Receive an email with your results within 14 working days of your appointment at the Hub

Find your nearest Hub

Our Hubs provide discreet and convenient locations for you to provide your semen sample. If you live within 1 hour of a Hub, you can produce your sample at home and drop off at the Hub. If you live further away, the Hub will provide a private room for you to produce your sample.

  • North London
  • Central London
  • Cheshire
  • Belfast
  • Dublin


The Science

The Hubs

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For Healthcare Professionals


  • Unit 18A Block K
  • Weavers Court Business Park
  • Linfield Road
  • Belfast BT12 5GH

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