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Sample Page

The page below is a sample from the MediaLab course, Semen Analysis.

Learn about Compliance & CE courses available for clinical laboratories and individual medical technologists.


Liquefaction should be complete before viscosity is assessed.
Semen viscosity can be estimated by aspirating the sample into a wide-bore plastic disposable pipette, allowing the semen to drop by gravity and observing the length of the thread that is formed. A normal sample leaves the pipette in small drops with very little trailing thread. A semen sample that is abnormally viscous will form a thread more than 2 cm long.
A specimen that is more viscous than normal after liquefaction may have reduced sperm motility. During sexual intercourse, hyperviscosity can prevent the sperm from reaching the cervix.



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