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The tubercle of the upper lip (also known as the procheilon, labial tubercle, or tuberculum labii superioris) is an anatomical protuberance called a tubercle, located in the center of the human upper lip.[1]


A study published in June 2011 claimed that the greater the prominence of a female's tubercle of the upper lip, the likelier she is to experience vaginal orgasm.[2]


  1. ^ mediLexicon: "tubercle of upper lip"
  2. ^ Brody, Stuart; Costa, Rui Miguel (2011). "Vaginal Orgasm Is More Prevalent Among Women with a Prominent Tubercle of the Upper Lip". The Journal of Sexual Medicine. 8 (10): 2793–9. doi:10.1111/j.1743-6109.2011.02331.x. PMID 21676178. Lay summaryMSNBC (June 24, 2011). [unreliable medical source?]

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