ObjectiveTo evaluate the behavior of seminal parameters over the years - 2010 to May
2017.MethodsA retrospective study, carried out from January 2010 to May 2017, covering
men who underwent sperm examination. Seminal parameters (volume, sperm
concentration, motility, morphology, age and duration of infertility in
years) of 23,504 men were evaluated. The groups were compared to each other
to check whether there were changes to the seminal parameters in that
period.ResultsThere was no change over the years considering the time of infertility, in an
average of 3.78 years. The mean age of the patients was 36.53 years, with a
trend of increase in 0.2 years. In relation to the volume of semen samples,
the mean value was 3.29mL, with a decrease trend in 0.05mL. As for sperm
concentration, the average was 34.37 million/mL, with a decrease trend of
1.0 million/mL. Progressive sperm motility showed an average of 47.27% and
there was a decrease trend of 0.67%. Finally, sperm morphology presented an
average of 2.79% of normal spermatozoa, with a decrease trend of 0.33%.ConclusionIt can be noted that over the years, the sperm quality of men looking for
assisted reproduction clinics has tended to decrease in macroscopic and
microscopic parameters (volume, sperm concentration, motility and
morphology).