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Learn how to treat a low sperm count in this Howcast video about infertility.
Abnormal semen analysis are one of the most common causes for difficulty conceiving in a couple. In an abnormal semen analysis, one of the most common abnormalities is a low sperm count. Sperm counts are considered low if the count is generally less than 20 million sperm per milliliter of ejaculate. Some experts consider less than 15 million per milliliter as being the lower limit of normal.
Why do men have low sperm counts? Some have low sperm counts due to genetic abnormalities where they actually produce very low numbers of sperm. Some actually have obstructions in the reproductive system whereby sperm can't go from the higher end of the testicle down into the urethra to come out in the ejaculate. So there are both non-obstructive and obstructive causes of abnormal semen analysis and low sperm count.
Many men have absolutely no sperm in the ejaculate and yet they're not necessarily completely infertile when using certain infertility specialists. Many men have absolutely no sperm in their ejaculate but they are not necessarily infertile if they are subject to the proper treatments.