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Male fertility test Article
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Male fertility test
Definition
A semen analysis is a test to measure the amount and quality of a man's semen and sperm. It is sometimes called a sperm count.
Alternative Names
Male fertility test; Sperm count
Why the Male fertility test is Performed
The test is done to evaluate a man's fertility. Approximately half of couples unable to have children have a male infertility problem. One of the first tests done to evaluate a man's fertility is the semen analysis. It can help determine if a problem in sperm production or quality of the sperm is causing infertility.
The test may also be used after a vasectomy to make sure there are no sperm in the semen.
Additional conditions under which the test may be performed:
How the Male fertility test is Performed
A semen sample will be obtained. Semen is the thick, white, sperm-containing fluid excreted during ejaculation. The method of sample collection should be discussed with the health care provider.
The sample may be obtained by masturbation into a sterile container. It may also be achieved by intercourse using a special condom supplied by the health care provider. The sample must be analyzed within 2 hours of the collection. The earlier the sample is analyzed the more reliable the results are.
At the laboratory, the semen sample is analyzed and the following are determine:
- Sample volume
- Number and structure of the sperm
- Sperm movement
- Fluid thickness, acidity, and sugar content
How to Prepare for the Male fertility test
There should be no sexual activity that causes ejaculation for 2 - 3 days before the test.
How the Male fertility test Will Feel
If the man is uncomfortable about how the sample is to be taken, this should be discussed with the health care provider.
Risks
There are no risks.
Considerations
The use of many recreational and prescription drugs, alcohol, and tobacco use may affect a man's fertility.
Normal Results
Values may vary from laboratory to laboratory. The most common normal values are listed below.
The normal volume varies from 1.5 to 5.0 milliliter per ejaculation.
The sperm count varies from 20 to 150 million sperm per milliliter.
At least 60% of the sperm should have a normal shape and show normal forward movement (motility).
What Abnormal Results Mean
Abnormal results may suggest a male infertility problem. For example, if the sperm count is very low or very high there is a likelihood of being less fertile. The acidity of the semen and the presence of white blood cells (suggesting infection) may influence fertility.
However, there are many unknowns in male infertility. The results from the test may fail to explain the cause. If a low sperm count or abnormal semen is found, further testing may be required.
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