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How does premature ejaculation affect erectile function?

Peng, J1; Zhang, ZC1

1: Peking University First Hospital, China

Objective: Premature ejaculation (PE) is the most common male sexual dysfunction. Patients with PE may comorbid with ED. We still do not know how PE causes ED. In this study we aimed to investigate the feature of patients with PE comorbid with ED.

Material and methods: We collected the data of patients complained of short ejaculate time from Jan 2015 to Dec 2015 in clinic. Those patients with premature ejaculation diagnostic tool (PEDT) ≥11 were included in this study. Self-reported intravaginal ejaculatory latency time (IELT), premature ejaculation profile (PEP) and International Index of Erectile Function-5 (IIEF-5) were recorded. Patients with IIEF-5 score <22 had ED. All patients were divided into 2 groups: PE and PE comorbid ED. All clinical parameters were compared between the 2 groups.

Results: 328 patients were included and their data were analyzed. 62.2% of patients reported ED. The age, duration of PE and proportion of primary PE were not significantly different between PE group and PE+ED group. The PEDT score was higher in PE+ED group than that of PE group (15.50±2.53 vs 14.44±2.35, P<0.001). Moreover, PE+ED worse satisfaction, distress and difficulty in relationship, but not ejaculate control. The patients with PE and ED had worse erectile function. We checked all 5 questions in IIEF-5 and found significant difference in all 5 questions between 2 groups. The intercourse satisfaction (question 5) was affected most seriously. About 40% of patients were diagnosed as ED because they only reported almost no satisfactory intercourse.

Conclusions: PE and ED may co-affect. PE severity may relate to erectile dysfunction. PE could affect all aspects of erectile function. However, PE may first affect sexual satisfaction and then cause ED. ED will also worse PE.


Work supported by industry: no.

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