The corpus cavernosa are the two spongy chambers along each side of
the shaft of the penis. When you have an erection, the smooth muscle in these
chambers relaxes, blood flows in through the penile arteries, and the chambers
fill with blood and expand. The expanded chambers press against the veins that
would normally drain blood from the penis, trapping the blood inside and making
the penis erect.
After ejaculation or when you are no longer sexually aroused, the
arteries narrow, the veins expand, and the blood drains out. The penis becomes
Since you or a loved one was recently diagnosed with erectile dysfunction (ED), ask your doctor these questions at your next visit.
Could an underlying illness be causing my erectile dysfunction or making it worse?
Could any of my medications be causing my ED or making it worse?
If so, can I safely change my medications or their doses?
How might the use of tobacco or alcohol contribute to ED?
Could stress or other psychological problems be contributing to my erection difficultie...