ABSTRACT
Male infertility is one of the most common, identifiable causes of human reproductive
failure. Although considerable progress has been made toward understanding sperm physiology
and the biology of gamete interaction, still more work is needed to achieve objectivity
and standardization of some of the andrological diagnostic methods used in the clinical
setting. More information is needed to definitively establish which tests are more
accurate predictors of sperm performance and how they correlate with pregnancy potential
following in vivo and in vitro interventions. Infertile men can be successfully treated
with defined urological and medical therapies or with assisted reproductive technologies
(ARTs). Among the latter, intracytoplasmic sperm injection (ICSI) has become a validated
means to overcome multiple sperm deficiencies. Nevertheless, it is expected that simplified
and more cost-efficient therapeutic modalities will be developed as additional basic
(cellular-molecular) and clinical knowledge is gained.
KEYWORD
Azoospermia - ICSI - male infertility - spermatozoa