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###1: Spermatozoa, Semen

Published: August 9, 2026Updated: August 16, 2026

###3: This test examines a semen sample to determine whether sperm are present. It may be used as part of a fertility evaluation or when assessing reproductive health.

Quick summary

["###4: The result indicates whether sperm were detected in the semen sample."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
107184-4
Short code
Sperm Smn
Synonyms
Sperm Smn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

###5: What the test measures

###6: The laboratory examines the semen specimen for the presence of spermatozoa, the male reproductive cells that carry genetic material.

###7: Why it is performed

###8: Testing may be requested during a fertility assessment, when evaluating possible infertility, or as part of routine reproductive health testing.

###9: Sample collection

###10: A semen sample is collected, usually by masturbation into a sterile container. The laboratory then examines the sample according to its testing procedure.

###11: Understanding the result

###11: A positive result means sperm were detected. A negative result means no sperm were identified in the sample examined; your clinician can explain the result in the context of your situation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

###13: Clinical significance: Sperm presence is one part of evaluating male fertility. The finding should be interpreted with other semen-test results, medical history, and examination findings by a qualified healthcare professional.

Short name

###2: Sperm presence in semen

Frequently asked questions

###14: What does a positive result mean?
###15: A positive result means sperm were found in the semen sample. This generally indicates that sperm production and delivery are present, but it does not by itself establish fertility or sperm health.
###16: What does a negative result mean?
###17: A negative result means sperm were not detected in the sample. The result can be influenced by collection conditions, timing, or other factors, so repeat testing or additional evaluation may be needed.
###18: Is this the same as a complete semen analysis?
###19: Not necessarily. This test specifically addresses sperm presence in semen. A complete semen analysis typically includes additional measurements such as sperm concentration, motility, vitality, and semen volume.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy