For the penis, a detailed nerve map has already existed since the late 1990s. For the clitoris – an extremely sensitive and fundamental organ for women’s sexual pleasure – we proceeded much more tentatively, with imprecise tables, hasty descriptions and a delay that says a lot about how medicine has looked at the female body. Now something is really moving: a research group from the Amsterdam UMC has published the first high-resolution 3D reconstruction of the clitoral nerve network on bioRxiv. The study remains a preprint, so it has yet to undergo peer review, but it already brings to the table a number of details that the manuals had left behind.
The authors worked on two female pelvises donated to research after death, using a synchrotron X-ray imaging technique capable of seeing tiny structures with very high precision. The scans reveal a more intricate organ than many texts have described so far. Five large nerve trunks appear in the clitoral glans, with diameters between 0.2 and 0.7 millimeters, and the branching continues towards the clitoral hood and the mons of Venus. The posterior labial nerve also enters the picture, which innervates the area around the clitoris and the labial structures.
The atlases left more than one detail behind
The most interesting part concerns the dorsal nerve of the clitoris, i.e. the main sensory nerve of the organ. For years it was assumed that going towards the glans it would become thinner until it lost strength. The new images tell another story: the nerve reaches there with a robust, present, live branch. It is a technical correction only in appearance. When an atlas mistakes the path of a nerve, that error carries over into the training, into the explanations to the patient, into the gestures of the operator.
Inside this work there is also a detail that weighs almost as much as the data. The same authors recall that the clitoris remained on the margins of the great anatomical texts for a long time and that, when it entered the 38th edition of the Grey’s Anatomy from 1995, was described in a simplistic way as a small version of the penis. From then on something moved, thanks also to the work of Helen O’Connell and other groups who have better reconstructed the clitoral anatomy since 2005, but a 3D nerve map of this level was still missing.
When operating, a few millimeters change everything
The authors write that this reconstruction can have an immediate impact on surgeries performed around the vulva. The reference goes to reconstructive surgery after female genital mutilation, gender affirmation surgery and oncological or reconstructive operations in the vulvar region. Knowing the nerve network better means reducing the risk of involuntary damage and working with less blind margins in an area where a few millimeters count a lot.
On the front of female genital mutilation, the numbers remain enormous. The World Health Organization speaks of over 230 million girls and women alive today who have undergone this practice in 30 countries in Africa, the Middle East and Asia. The most common form includes partial or total removal of the clitoral glans and clitoral hood. In this context, a more accurate map is certainly useful, because it offers better tools to those who try to reconstruct function and sensitivity.
The work also has a clear limit: the samples studied are two, and they belong to donors of post-menopausal age. The road is open, the full finish line is ahead. The researchers themselves talk about a starting point and want to expand the sample to different ages. With this map, there is now a route to follow: useful for medicine, sure, but also for anyone who has a body or cares for someone else’s.
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