male infertility azoospermia Oligospermia GeneRIF:11869379 GeneRIF:15044259 MSH:D009845 Oligozoospermia Low Sperm Counts GeneRIF:16275267 GeneRIF:16123080 Count, Low Sperm URI: http://www.ebi.ac.uk/cellline#azoospermia DOID:14227 ICD9:606.0 GeneRIF:15220464 azoospermia GeneRIF:15064832 GeneRIF:16213863 GeneRIF:12161499 A condition of suboptimal concentration of SPERMATOZOA in the ejaculated SEMEN to ensure successful FERTILIZATION of an OVUM. In humans, oligospermia is defined as a sperm count below 20 million per milliliter semen. GeneRIF:12399529 GeneRIF:15253135 GeneRIF:12634316 GeneRIF:12399527 GeneRIF:11499325 James Malone GeneRIF:12366783 GeneRIF:15379971 Azoospermia (finding)