الفهرس 
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Abstract
Infertility is an emerging medical and social problem. One out of five couples is estimated to have problems for conception. The role of clinical laboratory is crucial in the clinical evaluation and monitoring of infertile couple. Semen analysis is necessary for study male infertility. Semen analysis :including spermatozoa count, evaluation of ejaculate volume, sperm motility , viability, morphology, immature spam cells and leukocytes evaluation is a commonly requested analysis for clinical laboratory .The average sperm count in normal fertile males is 70-80×(10)6 sperms/ml, but this finding is not indicative of the minimal requirements for fertilization.