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Analysis of seminal fluid to investigate the effectiveness of a vasectomy procedure is carried out within the haematology section of the Blood Sciences Department of Pathology.

Each andrology sample is examined by two Biomedical Scientists, and there is an Andrology Lead Biomedical Scientist and clinician available for advice. Please contact the main haematology laboratory if information or advice is needed.

Analysis of post-vasectomy specimens is restricted to an appointment-only system. Patients must contact the laboratory on 01226 432610 to leave details within two weeks of having their procedure. Their details will be retained and a link to book an appointment will be sent out to the mobile number provided. It is important that details provided are correct.

The specimen pot and request form, including all the information, will be provided post-procedure by the clinician or representative. It is essential that you only use the specimen pot provided as this has been assessed and passed as suitable for use by the laboratory. If the pot you are provided with becomes unusable or damaged, you must contact the laboratory for another. Any specimen received in another type of pot will be rejected. Do not open the specimen pot until ready to use.

Get in touch

Call us on
01226 432610

Important criteria for patients

Prior to producing a sperm sample

The first sample must be produced at least 16 weeks and 24 ejaculations after your operation. Providing a sample before 16 weeks and 24 ejaculations increases the chance of a false-positive result and a repeat will be needed.

You must not have had sex or masturbated for 48 hours before collecting your specimen, but your abstinence period must not be longer than 7 days.

Recreational and some prescription drugs can affect sperm; please discuss with your clinician if you think this might affect your sample.

Febrile illness (having a temperature) can affect sperm so it is better to wait until you feel well again before producing a specimen.

Producing your sperm sample

Wash your hands and genitals with soap and water, rinse thoroughly to remove any soap residue then dry completely.

Do not open the container until ready to use. Collect the specimen by masturbation directly into the specimen pot. Please ensure the whole, complete sample is collected. There is a tick box on the form to complete for this, please ensure it is filled in.

It is important not to use a sheath or condom as they are harmful to sperm and may give false-negative results.

If a specimen is spilled or the complete specimen is not collected in the pot provided, please state this on the request form as an incomplete collection. This may affect your results and a repeat may be requested to ensure accuracy of the result. Failure to report an incomplete sample may result in a false negative result.

Returning your sperm sample

It is important to complete fully the details on the request form. The requesting clinician or medical personnel providing the request form should complete the medical signature (or consultant field), on the form. If the request form is not complete, this may result in your specimen being rejected.

Write your name, date of birth and date and time of sperm production on the specimen pot. If this is not complete, it will result in your specimen being rejected.

It is important to complete all the details on the request form that apply to you. Missing information may result in your request being rejected.

Any misinformation provided may affect the results provided by the laboratory. Results are supplied on the understanding that the information provided is accurate and truthful and the specimen has been produced and collected as per the instructions on the request form.

The sample must be maintained at body temperature when delivering the sample to the laboratory reception.

The specimen and attached request form must be delivered to the laboratory reception within one hour of collection. This is crucial as staff must prepare and process the sample within four hours of collection. It is important to attend on your appointment date & time. However, if you have any difficulties and are unable to attend, please ring the lab to rearrange as failure to attend will result in a “did not attend” report going to the requesting clinician.

All results are sent back as a paper report to the requesting GP or the Urology department. The requesting GP or Urology Department will inform you of any further action required, depending on results.

For advice about sending the specimen to the laboratory or any of the information above:

Please call: 01226 432610