Last reviewed dd mmm yyyy. Last edited dd mmm yyyy
A sperm count below 15x 10^6/ml (oligozoospermia) (1) should be considered clinically relevant, a count below 5x 10^6/ml (severe oligozoospermia) should be considered to have significant clinical relevance.
Reduced sperm count is generally idiopathic. However it may be due to defective spermatogenesis or an incomplete obstruction.
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