title: Fine-touch pressure thresholds in the adult penis.
abstract: OBJECTIVE
  To map the fine-touch pressure thresholds of the adult penis in circumcised and uncircumcised men, and to compare the two populations.
  
  
  METHODS
  Adult male volunteers with no history of penile pathology or diabetes were evaluated with a Semmes-Weinstein monofilament touch-test to map the fine-touch pressure thresholds of the penis. Circumcised and uncircumcised men were compared using mixed models for repeated data, controlling for age, type of underwear worn, time since last ejaculation, ethnicity, country of birth, and level of education.
  
  
  RESULTS
  The glans of the uncircumcised men had significantly lower mean (sem) pressure thresholds than that of the circumcised men, at 0.161 (0.078) g (P = 0.040) when controlled for age, location of measurement, type of underwear worn, and ethnicity. There were significant differences in pressure thresholds by location on the penis (P < 0.001). The most sensitive location on the circumcised penis was the circumcision scar on the ventral surface. Five locations on the uncircumcised penis that are routinely removed at circumcision had lower pressure thresholds than the ventral scar of the circumcised penis.
  
  
  CONCLUSIONS
  The glans of the circumcised penis is less sensitive to fine touch than the glans of the uncircumcised penis. The transitional region from the external to the internal prepuce is the most sensitive region of the uncircumcised penis and more sensitive than the most sensitive region of the circumcised penis. Circumcision ablates the most sensitive parts of the penis.
authors: HIV/AIDS researcher, San Francisco, CA, USA.
authors: Morris L
authors: ML
authors: Sorrells
authors: James L
authors: JL
authors: Snyder
authors: Mark D
authors: MD
authors: Reiss
authors: Christopher
authors: C
authors: Eden
authors: Marilyn F
authors: MF
authors: Milos
authors: Norma
authors: N
authors: Wilcox
authors: Robert S
authors: RS
authors: Van Howe
mesh_terms: D000328:Adult; D002944:Circumcision, Male; D052816:Foreskin / Q000294:innervation / Q000601:surgery; D006801:Humans; D008297:Male; D010413:Penis / Q000294:innervation* / Q000601:surgery; D012677:Sensation / Q000502:physiology*; D012684:Sensory Thresholds / Q000502:physiology; D014110:Touch / Q000502:physiology