Why you might see this term
Concentration and semen volume together determine total sperm number. A sample can have a different concentration without the same change in total number.
What to keep in mind
This one measurement cannot tell you the chance of pregnancy. It needs to be read with the rest of the semen report.
Sources & further reading
Prepared by ProFertility · Updated 23 October 2026.
Educational information based on the linked sources. This explanation is not an individual diagnosis or a treatment recommendation. A term appearing here does not mean the test is necessary or included in a particular kit.
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