PE etiology consists of a diverse range of biological and psychological theories. Psychological theories include: the effects of early experience and sexual conditioning, anxiety, sexual technique, the frequency of sexual activity and psychodynamic explanations (
10). Based on the possible psychogenic etiologies of PE, the condition is usually treated by clinical psychologists or psychiatrists and the recommended medication often used is one of the serotonin selective reuptake inhibitors (SSRI) and sometimes special neuromuscular exercises like the Kegel’s, which are useful to strengthen the pelvic and sexual muscles (
9,
11). Biological explanations for PE include: evolutionary theories, penile hypersensitivity, central neurotransmitter levels and receptor sensitivity (hyposensitivity of the 5-HT2C and/or hypersensitivity of the 5-HT1A receptors suggested for lifelong PE), the degree of arousability, the speed of the ejaculatory reflex and the level of sex hormones (
12) and finally lower urinary tract infection like prostatitis. In Murat Gonen et al. report, 51 (77.3%) of the patients with chronic pelvic pain syndrome had PE (
13-
15), although not enough attention had been paid to the organic genital diseases. In one study by Mr Lotti et al. that investigated the association between varicoceles, premature ejaculation and prostatitis symptoms in Italy, premature ejaculation was the only sexual symptom, significantly associated with varicoceles (29.2% vs. 24.9% in subjects with or without varicocele, respectively: P < 0.05) (
16). But in the present study, we evaluated the effects of varicocelectomy and improvements of PE in patients with varicoceles. Observing a lot of patients with varicoceles being also affected by PE, we assumed there might be a relation between these two conditions. To ensure we started this clinical trial research and investigated the relation between varicocelectomy and PE improvement among these patients. It seems that complete clinical evaluation and especially clinical and sonography evaluation of sexual organs are essential for patients with PE, before starting any routine medical treatment. Zohdy et al. studied the effects of varicocelectomy on erectile function and serum total testosterone level, in Egypt. The 5-score international index of erectile function (IIEF) improved significantly in patients with hypogonadism, following the varicocelectomy (17.1 ± 2.6 to 19.7 ± 1.8, P < 0.001), similar to their testosterone levels (379.1 ± 205.8 to 450.1 ± 170.2 ng/dL, P < 0.0001) (
17). Similar to the other studies, varicoceles showed to affect the sexual activity of many patients in the present study. It also had significant effects on sexual function of the patients, particularly on PE. In many studies varicocelectomy had improved the sexual satisfaction to different degrees. Our study also showed some degrees of sexual behavior improvement in patients. Altogether, all these facts prove that varicoceles may not only cause infertility, but can also strongly affect the sexual function and quality of life in many patients. It seems that for a significant number of patients with clinical grade 2-3 varicoceles, not well responding to medical treatments for PE (like paroxetin and clomipramine), varicocelectomy can be an alternative which effectively improves PE and spermiogram parameters.