23 doctors weighed in:

Why do I wakeup with a boner (my penis erect)?

23 doctors weighed in
Dr. Rabii Madi
Urology
12 doctors agree

In brief: Normal

Morning erection is a physiologic.
All men without physiological erectile dysfunction experience this phenomenon, usually three to five times during the night. It typically happens during rem sleep. The cause is unkown. Full bladder might cause a reflex erection during sleeping.

In brief: Normal

Morning erection is a physiologic.
All men without physiological erectile dysfunction experience this phenomenon, usually three to five times during the night. It typically happens during rem sleep. The cause is unkown. Full bladder might cause a reflex erection during sleeping.
Dr. Rabii Madi
Dr. Rabii Madi
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Dr. Foster Carr
General Practice
9 doctors agree

In brief: Normal

The technical name is nocturnal penile tumescence.
It is considered a normal event during sleep. Possibly related to growth hormone release during the middle of sleep . Lack of this condition is considered abnormal.

In brief: Normal

The technical name is nocturnal penile tumescence.
It is considered a normal event during sleep. Possibly related to growth hormone release during the middle of sleep . Lack of this condition is considered abnormal.
Dr. Foster Carr
Dr. Foster Carr
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2 comments
Dr. Martin Raff
Or you may be having sexually oriented dreams, which is also normal.
Dr. George Klauber
Often related to a distended bladder, particularly in young boys
Dr. Ed Friedlander
Pathology
1 doctor agrees

In brief: Because you're a man

This is normal especially when you're young.
You're a grown man now and I'm surprised you didn't ask your friends or Dad -- they've had the same experience. Enjoy it.

In brief: Because you're a man

This is normal especially when you're young.
You're a grown man now and I'm surprised you didn't ask your friends or Dad -- they've had the same experience. Enjoy it.
Dr. Ed Friedlander
Dr. Ed Friedlander
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