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Andrology services

Your clinician or doctor may refer you to TDL Andrology if you are looking for treatment for male infertility.

TDL provides a wide range of diagnostic testing to assess the factors affecting sperm health.

Services offered include:

  • Semen analysis
  • Post-vasectomy semen analysis
  • Sperm aneuploidy
  • Sperm DNA Fragmentation (SCSA and COMET)
  • Oxidative stress in semen (ROS + MiOXSYS)
  • Retrograde ejaculation

Producing samples

To provide the most accurate semen analysis, samples should be produced on-site at TDL’s Patient Reception at 76 Wimpole Street. 

Ideally patients must abstain from ejaculation for 2-3 days prior to the test, but no less than 2 days and no longer than 5 days before the test. This requirement is important for semen analyses and post vasectomy analyses to ensure reliability of results. Samples that do not comply with guidelines for abstinence and collection may not be able to be processed.

All semen samples must be produced directed by The Doctors Laboratory.

Booking an appointment

It is important to make an appointment for all semen samples whether for a comprehensive semen analysis or post vasectomy analysis. It may be necessary to give patients who attend without an appointment a specific time to re-attend.

The first appointments for post-vasectomy samples should usually be 12 weeks and 20 ejaculations after surgery and guidance should be given by the referring clinic/doctor.

The practice or patient are welcome to contact TDL to arrange an appointment and to confirm instructions for sample collection. Appointments can be made by:

Patients should attend with a completed pathology request form. Additional pathology tests if required can be carried out during the same visit.


See Online Booking Page

Contact us

If you would like to discuss the tests, or any aspect of this service, please contact TDL Andrology on 020 7025 7940 or email for further information.