ABSTRACT
Male-factor infertility can be associated with a wide range of semen anomalies involving sperm count, motility, and morphology. In the inherently complex fertilization process, male-factor infertility, along with defects in sperm function, is the single most common cause of failure to achieve pregnancy. The etiology of impaired sperm production and function could be due to congenital or acquired obstruction to sperm passage from the testis or epididymes, genetic mutations, chromosomal abnormalities, endocrine factors and idiopathic factors.
