[Treatment of excretory azoospermia. Biological aspects of surgery]

The therapeutical strategy for excretory azoospermia is very efficient at the present time. It is represented by two complementary methods very different both in their concept and their practical aspects. The surgery for recanalisation of the seminal tract is the old method, associated with reproducible and validated results providing a sophisticated operative methodology which implies microsurgery. The recent introduction of the assisted reproduction technics with better or at least equal results than those of surgery and with a growing therapeutical power already nowadays offers satisfying opportunities of treatment in some selected indications. The evolution of the therapeutical strategy is analyzed through our proper practice and the data of the literature.