Stephen J. Schueler, M.D.

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Impotence Underlying Cause

An erection of the penis is stimulated by emotions and sensations. The penis contains spongy chambers that fill with blood. During erection, the blood flow increases to the penis and the chambers fill. The brain, spinal cord, and nerves in the penis initiate and maintain the erection.

Causes include:

Last Updated: Feb 3, 2011 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Impotence References
  1. DePalma RG. Vascular surgery for impotence: a review. Int J Impot Res. 1997 Jun;9(2):61-7. [9205873]
  2. Frajese G, Pozzi F. New achievements and pharmacotherapeutic approaches to impotence in the elderly. Aging Clin Exp Res. 2003 Jun;15(3):222-33. [14582685]
  3. Heaton JP, Morales A. Endocrine causes of impotence (nondiabetes). Urol Clin North Am. 2003 Feb;30(1):73-81. [12580559]
  4. Tengs TO, Osgood ND. The link between smoking and impotence: two decades of evidence. Prev Med. 2001 Jun;32(6):447-52. [11394947]
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