Seminal biomarkers and their correlations to semen parameters in subfertile men.

Research Question: To assess the levels of seminal biomarkers fructose, zinc and citrate and their correlations to semen parameters in infertile men.

Design: 200 infertile male participants undergoing fertility assessment at Singapore General Hospital (SGH), Singapore were recruited prospectively, from June 2020 to August 2021. Their semen samples were assessed for seminal parameters, biomarker levels of fructose, citrate and zinc, leukocyte concentrations and aerobic cultures.