Abstract
There has been conflicting opinions in the literature regarding sexual function in hypogonadal men with micropenis. In this study we aimed to evaluate erectile function in hypogonadal men with micropenis by nocturnal penile tumescence and rigidity testing (NPTR) and compared the results with young potent normal penile sized men. A total of 15 men (ages 17–30 y) defined having a micropenis with a stretched penile length of less than 9.3 cm were constituted the study group. Mean stretched penile length was 6.8±1.6 cm (range 3.6–7.8 cm). Karyotype analysis showed 46XY in all cases. Control group included 22 potent and normal penile sized men (23–29 y). All subjects completed three sessions of consecutive nights using the RigiScan Plus device. Comparison of the results of NPTR of control group with study group revealed that number and duration of erectile episodes (P<0.001), duration of tip rigidity >60% (P<0.01), TAU tip and TAU base (P=0.001), and RAU base (P=0.01) were found to be significantly lower in men with micropenis. In conclusion, our study showed that men with micropenis are associated with decreased nocturnal erectile activity.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 8 print issues and online access
$259.00 per year
only $32.38 per issue
Rent or buy this article
Prices vary by article type
from$1.95
to$39.95
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Lee PA et al. Micropenis. Criteria, etiologies and classification. Johns Hopkins Med J 1980; 146: 156–161.
Evans BA, Williams DM, Hughes IA . Normal postnatal androgen production and action in isolated micropenis and isolated hypospadias. Arch Dis Child 1991; 66: 1033–1036.
Bin-Abbas B, Conte FA, Grumbach M, Kaplan SL . Congenital hypogonadotropic hypogonadism and micropenis: effect of testosterone treatment on adult penile size—Why sex reversal is no indicated. J Pediatr 1999; 134: 579–583.
McLorie GA, Khoury AE, Husmann DA . Surgery for micropenis in childhood. Dial Pediatr Urol 1989; 12: 6.
Mills TM, Lewis RW . The role of androgens in the erectile response: a 1999 perspective. Mol Urol 1999; 3: 75–80.
Granata AR, Rochira V, Lerchl A . Relationship between sleep-related erections and testosterone levels in men. J Androl 1997; 18: 522–527.
Tenover JL . Testosterone and aging male. J Androl 1997; 18: 103–106.
Woodhouse CRJ . Sexual function in boys born with extrophy, myelomeningocele and micropenis. Urology 1998; 52: 3–11.
Reilly JM, Woodhouse CRJ . Small penis and the male sexual role. J Urol 1989; 142: 569–571.
Kadioğlu P et al. Penile hemodynamics in hypogonadal men with micropenis. Urology 2003; 61: 426–430.
Levine LA, Lenting EL . Use of nocturnal penile tumescence and rigidity in the evaluation of male sexual dysfunction. Urol Clin N Am 1995; 22: 775–788.
Wessels H, Lue T, McAninch JW . The relationship between penile length in the flaccid and errect status: guidelines for penile lengthing. J Urol 1995; 153(Part 2): 379A.
Cunnigham GR et al. Testosterone replacement therapy and sleep-related erections in hypogonadal men. J Clin Endocrinol Metab 1990; 70: 792–797.
Bancroft J, Wu FCW . Changes in erectile responsiveness during androgen replacement therapy. Arch Sex Behav 1983; 12: 59–66.
Kwan M et al. The nature of androgen action on male sexuality: a combined laboratory self report study of hypogonadal men. J Clin Endocrinol Metab 1983; 57: 557–562.
Karacan I et al. Sleep-related penile tumescence as a function of age. Am J Psychiatry 1975; 132: 932–937.
Yaman Ö, Tokatlı Z, Inal T, Anafarta K . Effect of sildenafil on nocturnal erections of potent men. Int J Impot Res 2003; 15: 117–121.
Judson JVW, Calikoglu A . Should boys with micropenis be reared as girls. J Pediatr 1999; 134: 537–538.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yaman, O., Soygür, T., Akand, M. et al. Effect of penile size on nocturnal erections: evaluation with NPTR testing with men having micropenis. Int J Impot Res 17, 243–247 (2005). https://doi.org/10.1038/sj.ijir.3901292
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/sj.ijir.3901292