4 doctors weighed in:

What causes involuntary erections?

4 doctors weighed in
Dr. Paul Turek
Urology
3 doctors agree

In brief: Nature does it

Involuntary erections occur several times nightly for 30-60 min for men with normal erections.
This is probably the equivalent of the penis taking a big breath, relaxing and "sighing" as it takes more energy for the penis to stay flaccid than erect.

In brief: Nature does it

Involuntary erections occur several times nightly for 30-60 min for men with normal erections.
This is probably the equivalent of the penis taking a big breath, relaxing and "sighing" as it takes more energy for the penis to stay flaccid than erect.
Dr. Paul Turek
Dr. Paul Turek
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