(468) Spatiotemporal Distribution of Self-Perceived Penile Sensitive Areas in Men with and Without Primary Premature Ejaculation

Introduction Penile hypersensitivity may play an important role in the pathogenesis of primary premature ejaculation (PPE), and the heterogeneous distribution of sexual sensitivity in the penis has been studied in PPE patients. However, no study investigated the heterogeneity across PPE and non-PE populations using detailed penile anatomic maps, as well as their different stages of sexual response cycle. Objective We aim to explore the distribution and discrepancy of self-perceived penile sensitive areas in PPE patients and those without PE, as well as their different stages of sexual response cycle. Methods Our study included 93 PPE and 64 non-PE individuals. The penile surface area was divided into 24 parts and participants were asked to report their penile sensitive areas during the plateau and orgasm phases in partnered sex. We compared the distribution of penile sensitive areas between different populations and phases using Chi-square test or Fisher's exact test. Results There was no significant difference in the distribution of penile sensitive areas between patients with PPE and those without (p>0.05). However, we found significant variations between the plateau and orgasm phases in both PPE and non-PE populations (p<0.05). During the plateau phase, the most individuals reported the dorsal coronal margin and dorsal glans as their penile sensitive areas in both populations. During the orgasm phase, the ventral (upper, middle and root) shaft demonstrated a relatively prominent proportion for penile sensitive areas compared to the left, right, and dorsal shaft in both populations. Lastly, a rare proportion thought scrotum is sensitive. Conclusions There was no significant difference in the distribution of penile sensitive areas between individuals with PPE and those without, while it was found between plateau and orgasm phases. Disclosure No