<p>Many men have sexual problems. They become more common as men age. Problems can include:</p><ul> <li><a href="https://medlineplus.gov/erectiledysfunction.html">Erectile dysfunction</a></li> <li>Reduced or lost interest in sex</li> <li>Problems with ejaculation</li> <li>Low testosterone</li> </ul> <p>Stress, illness, medicines, or emotional problems may also be factors. Occasional problems with sexual function are common. If problems last more than a few months or cause distress for you or your partner, you should see your health care provider.</p>