Semen Analysis Interpreter
Enter your semen analysis results to better understand the terminology and what may be worth discussing next.
FREE MALE FERTILITY TOOL
Semen Analysis Results Interpreter
Enter the numbers from your semen analysis to get a plain-English explanation of sperm concentration, motility, morphology, semen volume and other reported results.
Important: This tool does not give you a fertility score and cannot tell you whether you are fertile or infertile. It explains the pattern in the values you enter using WHO reference values.
1. Enter your results
Copy the values exactly as they appear on your laboratory report. You do not need to complete every field.
This helps distinguish a confirmed zero-sperm result from cryptozoospermia. If unsure, choose “Not sure”.
2. Sample context optional
These details do not change the WHO reference limits. They help explain whether collection conditions could affect interpretation.
WHO laboratory collection guidance generally uses 2–7 days.
Incomplete collection can affect volume and total sperm number.
YOUR SEMEN ANALYSIS PATTERN
Your entered results
* Being at or above a WHO lower reference limit does not mean fertility is guaranteed or “normal”.Calculated values
What does this mean?
What should I do next?
Questions worth asking your doctor
Better understand your results
These pages explain the relevant findings and possible next steps in more detail.
Need specialist interpretation?
If your results are abnormal, repeatedly abnormal, show very low sperm numbers, or report no sperm, specialist male fertility assessment can help clarify the cause and next step.
Book a male fertility assessment
About the reference values: This interpreter uses the lower reference limits in the WHO Laboratory Manual for the Examination and Processing of Human Semen, 6th edition (2021): volume 1.4 mL, sperm concentration 16 million/mL, total sperm number 39 million/ejaculate, total motility 42%, progressive motility 30%, vitality 54% and normal morphology 4%. These are the lower fifth centiles of a reference population and are not a boundary between fertile and infertile men.
Educational tool only. This tool does not diagnose infertility, identify the cause of an abnormal result, recommend a specific treatment, or predict the chance of natural conception, IVF success or live birth. Semen parameters vary between samples and should be interpreted with medical and reproductive history, examination and the fertility circumstances of both partners.