Note that this study you cite is of infants. The point of this study is to determine standards for what constitutes “ambiguous genitalia” where clitoral reduction surgery may be warranted. If you then look at the literature on clitoral reduction surgery in such cases, you will be horrified at how laissez faire doctors are about cutting innervation to the glans. Even with nerve sparing surgeries, it is reported that only 1/3rd of patients will end up with normal sensation. However, elsewhere doctors report that cutting the glans has no affect on the later sexual behavior or sexual function of patients (think about what is implied here ).

The clitoris is actually understudied. Detailed studies that have been done are rarely cited and do not make their way into Gynecology literature. One Urologist who has studied vulvar anatomy extensively has told me this is because GYN journals see this anatomy as being of low interest.