
The penis is the primary external sexual organ in individuals assigned male at birth. It serves both reproductive and urinary functions. Typically, the penis consists of a shaft and a <a href="/define/glans" class="internal-link" target="_blank" rel="noopener noreferrer">glans</a> (head), covered by foreskin in uncircumcised individuals. During sexual arousal, the penis becomes erect due to increased blood flow, allowing for sexual <a href="/category/intercourse" class="internal-link" target="_blank" rel="noopener noreferrer">intercourse</a> and the potential for reproduction.

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The penis varies in size and shape among individuals. It contains erectile tissue that fills with blood during arousal, causing an erection. The <a href="/define/urethra" class="internal-link" target="_blank" rel="noopener noreferrer">urethra</a> runs through the penis, allowing for urination and the release of <a href="/define/semen" class="internal-link" target="_blank" rel="noopener noreferrer">semen</a> during <a href="/define/ejaculation" class="internal-link" target="_blank" rel="noopener noreferrer">ejaculation</a>. The foreskin, when present, protects the <a href="/define/glans" class="internal-link" target="_blank" rel="noopener noreferrer">glans</a> and can be retracted.

Penile health is an important aspect of overall sexual health. Regular self-examinations and medical check-ups can help detect any abnormalities or potential issues early on.

<div class="usage-example">
  <h3>Examples</h3>
  <p>Proper hygiene: Washing the penis regularly, including under the foreskin if uncircumcised</p>
  <p>Sexual function: The penis becomes erect during sexual arousal, facilitating penetrative sex</p>
</div>


The penis is the primary external sexual organ in individuals assigned male at birth. It serves both reproductive and urinary functions. Typically, the penis

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Penis

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