Researchers have uncovered new insights into male anatomy, identifying a specific area that may play a key role in sensitivity—challenging long-held assumptions about where this function is centered.
A team of scientists in Spain has questioned the long-standing view that the prostate, an internal gland, is the primary source of heightened sensation in men. Instead, their findings point to another region known as the frenular delta, a small triangular area on the underside of the penis that contains a high concentration of specialized nerve endings.
The idea of a highly sensitive “spot” has traditionally been associated with women, often referred to as the Gräfenberg area. Its existence has been debated for decades, though some recent studies have attempted to provide supporting evidence.
For men, the prostate has commonly been described as the closest equivalent in medical literature and educational materials. However, until recently, there had been limited detailed mapping of how nerves related to sensitivity are structured and distributed in the male body.
In this new study, researchers from the University of Santiago de Compostela used advanced laboratory techniques to examine tissue samples from both developing fetuses and adult donors. By applying specialized methods that highlight nerve structures under a microscope, they created one of the most detailed maps of nerve distribution in this area to date.
Their analysis showed that the frenular delta—a V- or Y-shaped region where the foreskin meets the head of the penis—contains a significantly higher density of nerve bundles and sensory receptors compared to other areas.
In some sections, clusters of tightly packed receptors were observed, suggesting this region may function as a particularly sensitive zone. Researchers believe this could help explain why it responds strongly to stimulation.
Published in the journal Andrology, the study emphasizes that this area has received relatively little attention in both medical research and educational discussions, despite its apparent importance.
While the prostate remains capable of producing strong internal sensations, it is a separate structure and was not the focus of this investigation.
Overall, these findings may contribute to a better scientific understanding of male anatomy, offering a more precise and evidence-based view of how sensitivity is distributed.
