1.0Glossaryhttps://www.healthbenefitstimes.com/glossaryGlossaryhttps://www.healthbenefitstimes.com/glossary/author/adminglossary/Nocturnal penile tumescence - Definition of Nocturnal penile tumescencerich600338<blockquote class="wp-embedded-content" data-secret="MJEyA9mzbz"><a href="https://www.healthbenefitstimes.com/glossary/nocturnal-penile-tumescence/">Nocturnal penile tumescence</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.healthbenefitstimes.com/glossary/nocturnal-penile-tumescence/embed/#?secret=MJEyA9mzbz" width="600" height="338" title="“Nocturnal penile tumescence” — Glossary" data-secret="MJEyA9mzbz" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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An erection during sleep.Erection occurring during sleep. In the normal male, erections during sleep begin in early childhood and continue to at least the eighth decade. The total time of NPT averages 100 minutes per night. In evaluating erectile dysfunction (ED), the presence of NPT suggests the patient has psychogenic rather than neurogenic or vascular ED.