Impact of Varicocele and Varicocele Surgery on Semen Quality, Erectile Function and Serum Hormone Levels

Abstract

Introduction: Many studies suggest that varicoceles are associated with hypogonadism and varicocele repair can increase testosterone levels and improve erectile function.Aim: The aim of this retrospective study was to analyze the impact of varicocele and varicocele surgery on testosterone level, semen quality, and erectile function.Methods: Our study included 265 infertile males with a clinical varicocele. This group was divided into three groups: group 1 (193) patients who did not receive surgery, group 2 (72 patients) who were operated on according to the Palomo procedure and group 3 (28 patients), who acted as a control group without a varicocele. All patients completed the International Index of Erectile Function IIEF-5 (German version) and underwent semen analysis. Serum testosterone, follicle stimulating hormone (FSH), and luteinizing hormone (LH) were measured at inclusion into the study and after surgery.Main outcome measures: Changes in semen quality, erectile function, and serum hormones after surgery.Results: The IIEF-5 scores in groups 1 and 2 were 21.01 ± 2.2; and 21.74 ± 1 respectively, and the resulting t-test for equality of variance was significant (p < 0.0001). Total testosterone level in groups 1 and 2 were 3.16 ± 0.37 and 3 ± 0.01, respectively, and the resulting t-test for equality of variance was significant (p < 0.0001). The results of the semen analysis were better in group 2 (after surgery) (28.6%, p < 0.001) in comparison to group 1. Interestingly, pre-operative serum testosterone levels were lower in patients with later improvement of semen analysis (p = 0.05). Body mass index (p = 0.8), pre-operative serum FSH (p = 0.9), LH (p = 0.2), and nicotine consumption (p = 0.6) were similar in both the group that saw improvement and the group with no change in semen quality.Conclusion: Semen quality improved in 28.6% of patients after varicocele surgery. Erectile dysfunction (ED) improved after varicocele surgery. We report that lower pre-operative serum testosterone level might be a possible indicator for successful surgical outcome.