title: Male infertility: current concepts.
abstract: The purpose of the article is to review the current concepts regarding the etiology and treatment of male-factor infertility. The following general conclusions can be drawn: (a) conventional parameters for sperm quality and male fertility are inadequate and any assessment should involve several different tests of sperm cell function to increase the fertility prognosis; (b) the causes of disturbed sperm quality are still poorly understood; (c) the role of the varicocele is still controversial but some of the discrepancies reported in the literature may be explained by the negative influence of other factors such as smoking, epididymal pathology or glandular infections operating either in conjunction or independent of the varicocele; (d) the role of chronic inflammatory processes in the reproductive organs, in particular the involvement of chronic chlamydial infections, has been underestimated, largely because it is often asymptomatic and difficult to demonstrate objectively; (e) partial androgen insensitivity may account for a significant number of cases of severe oligozoospermia; (f) no major advances have been made in the medical treatment of poor sperm quality; (g) assisted fertilization techniques such as IVF and GIFT offer encouraging possibilities for the treatment of male-factor infertility; and (h) recent advances in microsurgical techniques are increasing the treatment possibilities for certain forms of obstructive azoospermia and severe oligozoospermia.
authors.affiliation: Andrology Laboratory, National Hospital, Oslo, Norway.
authors.forename: K
authors.initials: K
authors.lastname: Purvis
authors.forename: E
authors.initials: E
authors.lastname: Christiansen
mesh_terms: D005260:Female; D005306:Fertilization / Q000502:physiology; D006801:Humans; D007248:Infertility, Male / Q000209:etiology / Q000276:immunology / Q000628:therapy; D008297:Male; D009845:Oligospermia / Q000209:etiology / Q000628:therapy; D012099:Reproductive Techniques