Sex and Relationships

Why do men wake up in the morning with an erection?

A Answers (1)

  • A , Pharmacy, answered

    That is called penile tumescence, and it's completely normal. In fact, erections happen several times a night during REM sleep. Since we typically wake up at the end of a REM cycle in the morning, it's also typical that men find they awake with an erection. Blood flow is necessary to maintain tissue health, and when that blood flow enters the penis, it causes the tissues to swell, hence an erection occurs. It doesn't usually mean that the man is actually aroused, however. 

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.
Did You See?  Close
What does it mean if I have a lot of morning erections?