The clitoris is a significant yet historically overlooked part of the human anatomy. Research by Prof Blair Peters indicates that for every published study on the clitoral gland, there are 20 studies on the penile gland. This disparity is partly due to the clitoris not fitting neatly into established medical disciplines, with urology focusing on the urinary tract and penis, while gynecology has concentrated on reproductive organs. Consequently, the clitoris has often been neglected in medical research.
Historically, the male-dominated medical field determined the focus of anatomical research, leading to the omission of the clitoris from the 1947 edition of Gray’s Anatomy. However, recent research has begun to shed light on this organ. In 1998, Australian urologist Helen O’Connell published research that depicted the entire clitoris, including its internal structure. More recently, Dr Ju Young Lee from Amsterdam UMC created the first digital map of the clitoris’s nerves, using advanced imaging techniques to trace nerve pathways with high precision.
Peters describes the clitoris as more than just the external part visible on the vulva, comparing it to a half-closed flower bud with extensive internal structures. Lee's study, which is pending peer review, revealed that the main sensory nerve, the dorsal nerve, branches out more extensively than previously thought, with nerves extending towards the clitoral hood and surrounding skin.
Lee emphasizes that understanding the clitoris can improve women's health care, as it is closely linked to the urethra and vagina. Peters’ previous work in 2022 involved analyzing clitoral nerve tissue donated by trans men undergoing gender-affirming surgery, revealing that the clitoral dorsal nerve contains over 10,000 nerve endings, surpassing earlier estimates.
The clitoris plays a role in sexual wellbeing and is associated with orgasm, although its evolutionary purpose is less clear compared to male orgasm. Dr Roy Levin from the University of Sheffield suggests that clitoral stimulation may prepare the body for sex by enhancing vaginal blood flow and lubrication. However, Peters cautions against solely linking the clitoris to reproductive functions, asserting that pleasure is its primary role.
Research also indicates that clitoral stimulation may provide pain relief, as demonstrated in a study where 86% of women reported improved pain relief during labor when using a vibrating tool. The mechanisms behind this effect remain unclear, warranting further investigation.
Despite advancements, many aspects of the clitoris remain poorly understood, particularly regarding the nerves responsible for its engorgement. Peters notes that sexual dysfunction can stem from both physical and psychological factors, highlighting the importance of a comprehensive approach to treatment that considers both anatomy and the social context surrounding women's health.
Continued research into the clitoris is essential for enhancing female healthcare and understanding the complexities of female anatomy.