thumb|Internal anatomy of the clitoris, vestibular bulbs indicated The G-spot having an anatomical relationship with the clitoris has been challenged by Vincenzo Puppo, who, while agreeing that the clitoris is the center of female sexual pleasure, disagrees with Helen O'Connell and other researchers' terminological and anatomical descriptions of the clitoris. He stated, "Clitoral bulbs is an incorrect term from an embryological and anatomical viewpoint, in fact the bulbs do not develop from the phallus, and they do not belong to the clitoris". He says that clitoral bulbs "is not a term used in human anatomy" and that vestibular bulbs is the correct term, adding that gynecologists and sexual experts should inform the public with facts instead of hypotheses or personal opinions. "[C]litoral/vaginal/uterine orgasm, G/A/C/U spot orgasm, and female ejaculation, are terms that should not be used by sexologists, women, and mass media", he said, further commenting that the "anterior vaginal wall is separated from the posterior urethral wall by the urethrovaginal septum (its thickness is 10–12 mm)" and that the "inner clitoris" does not exist. "The female perineal urethra, which is located in front of the anterior vaginal wall, is about one centimeter in length and the G-spot is located in the pelvic wall of the urethra, 2–3 cm into the vagina", Puppo stated. He believes that the penis cannot come in contact with the congregation of multiple nerves/veins situated until the angle of the clitoris, detailed by Georg Ludwig Kobelt, or with the roots of the clitoris, which do not have sensory receptors or erogenous sensitivity, during vaginal intercourse. He did, however, dismiss the orgasmic definition of the G-spot that emerged after Ernst Gräfenberg, stating that "there is no anatomical evidence of the vaginal orgasm which was invented by Freud in 1905, without any scientific basis".
Thumb|inteRnaL anaTomy oF ThE clItOriS, vestibuLAr bulbs Indicated tHe g-SpoT hAvinG an anaTomIcaL ReLaTionship witH the cLITOris hAs been chALlenGed BY vinCenZo puppo, wHO, while AGrEeing that ThE CliToriS is ThE ceNTeR oF fEmale sexuAL pleaSUrE, DisAgrEEs with helEn o'ConnelL anD oTHer REsearCherS' termiNoLogIcal ANd anAtomicAl DescRIptiOns of the CliToriS. he stated, "clitOral bulbs Is An iNcorrEct term fROm AN emBrYOLOgICAL and aNatoMical viEwpoiNt, In fAcT tHE bULbs dO Not deVelop from thE phaLlus, and thEy do nOt bEloNg to tHE clitoris". he sAYs that clItoral Bulbs "iS not a tERM uSed in human aNAtOmy" and tHAt vesTIBular BuLBS is the cOrreCt tERM, ADdiNg That gynecolOgIsTs anD SeXual exPerts should InfoRm thE pubLiC With FactS iNsteaD of hypotHeSEs oR peRSOnAl opinions. "[c]litoral/VaginAl/uteRine OrGaSM, g/A/c/U Spot Orgasm, and feMAle ejacuLatIoN, aRe termS That sHOulD NOt BE UsEd by sEXologiStS, wOmEN, AnD mAss MEDIA", he SAiD, Further CommeNTiNg ThAt the "anTerior vAgiNal wAlL is seParateD from thE postERiOr uRethral wall by thE UrEtHroVagiNal Septum (its ThICkNESs Is 10–12 mm)" anD that thE "innEr cliToris" DOeS not exISt. "The femalE pERineaL UreThra, whIch is LOcatEd in front of ThE anTErior vaGinaL walL, is aBout One ceNtiMeteR IN lENGth anD the G-Spot Is locAteD in tHe PelvIc WAlL of thE urEthra, 2–3 cm into tHe VAgina", puPpO statEd. He bElIeves That the PeNis Cannot cOme in contact with tHe congregation oF mUltiPle nErveS/vEinS sItUAtEd Until the angLE Of tHe clItoriS, detAilEd By GeOrG LUdwig kObelt, oR with The roots of the clitOrIs, WHicH do not haVe SEnsory receptors or EroGeNoUS senSiTivity, dUrinG VaginAL inTercoUrsE. hE DiD, hoWevEr, dismiss the orGASmIc definItion oF the g-spot thaT eMerGed AFTer ERnst GräFenBErG, staTinG that "There Is NO anaTOMIcal Evidence Of the VAgiNaL orGaSm which WAs inveNted bY fReud iN 1905, WiThout ANY ScIenTific basIs".