Semen (Sperm) analysis / count Lab Test

Semen (Sperm) analysis / count

Clinical Definition of Semen (Sperm) analysis / count

A Semen Analysis evaluates the amount and quality of a man’s semen and sperm to determine male fertility. This test is sometimes called a sperm count.

A Semen Analysis is used to assess the following:

  • vitality: sperm’s ability to live and endure 
  • Volume: A measure of the amount of semen present in one ejaculation
  •  morphology: percentage of sperm that have a normal shape
  •  motility: movement of the sperm (swimming ability)
  • count: the number of individual sperm present in one ejaculation
  • Fructose level- a measure of the amount of a sugar called fructose in the semen. The fructose provides energy for movement of the sperm.
  • pH- measure of the acidity (low pH) or alkalinity (high pH) of the semen
  • Liquefaction time- Semen is usually a thick gel at the time of ejaculation. It normally becomes liquid within 20 minutes after ejaculation. Liquefaction time is a measure of the time it takes for the semen to liquefy.

When do you expect results?

24 to 36 Hours

Why Get Tested?

A semen analysis aids in identifying any problems with infertility in males which may be the reason for the couple not being able to conceive successfully. This test may also be conducted to identify the success of a vasectomy operation or the reversal of the same.

Reason to take Semen (Sperm) analysis / count Test

Symptoms observed are 

  • Undescended testis
  • Varicocele
  • Infertily

Preparations Needed for Semen (Sperm) analysis / count Test

Abstain from sex for a period of a minimum of two days but not more than seven days, since a long period of sexual inactivity may result in less active sperm. 

Produce a sample by masturbation only

Collect the complete sample in the container provided.

Avoid drinking alcohol for a few days prior to the test being conducted

Sample Required?

Specimen type:For Men

Semen, Specimen collection procedure:Semen sample collection is through masturbation, directed into a clean cup.

Understanding results of Semen (Sperm) analysis / count

Reference RangeInterpretation
Liquefaction time20-30 minutes after collection
pH7.2-8.0
Volume2.0 ml or more
White blood cells (WBC)fewer than 1x106/ml, ideally must be absent
Sperm count20x106 spermatozoa/ml or more
Vitality75% or more live, i.e., excluding dye
Sperm Motility50% or more with forward progression
Fructose level13 m -mol or more per ejaculate
Morphology30% or more with normal forms

‘*A Reference range is a set of values which helps the healthcare professional to interpret a medical test. It may vary with age, gender, and other factors. Reference ranges may also vary between labs, in value & units depending on instruments used and method of establishment of reference ranges’

References

  1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3114587/
  2. http://www.mayoclinic.org/diseases-conditions/low-sperm-count/diagnosis-treatment/drc-20374591
  3. https://andrologyaustralia.org/your-health/semen-analysis/
  4. https://medlineplus.gov/ency/article/003627.htm