Received February 01, 2021
Accepted October 29, 2021

Approximately 15% of couples present the diagnosis of infertility. From these, 50% of cases are due to male factors. Several sperm function tests are proposed for the male fertility evaluation, but sperm analysis is still the first and most important test for diagnosis of male infertility. The prognostic value of the seminal characteristics as concentration, morphology and motility markers are often confused as male infertility. Evaluation of semen parameters and classification for normality remains frequent topic of discussion. This study evaluated 477 semen samples from men undergoing investigation or infertility treatments between years 2011 and 2015. Spermograms from 401 patients were considered abnormal by the WHO 1999, and 223 when evaluated by WHO 2010 and only 200 when total motile sperm count (TMSC) was the criteria. The criteria that most changed the classification was sperm morphology. The normality parameters became less rigid from 1999 to 2010 significantly changing the proportion of individuals who were no longer classified as infertile/subfertile. The classification based on TMSC could not define an individual as fertile or infertile regardless due to not taking into account the sperm morphology, but it may be helpful in cases where an intrauterine insemination is indicated.