[Changes in a semen analysis related to spontaneous pregnancy in patients with infertility history].

Objective: To describe changes in a semen analysis before getting a spontaneous pregnancy.

Material And Methods: In an observational, descriptive, longitudinal and retrospective study a semen analysis of the first evaluation of 96 patients was compared with the exam accomplished before getting a spontaneous pregnancy. A descriptive analysis of the semen exam was performed and the results of both exams were compared by means of at Student test with statistical significance for p < 0.