Erection

:This article discusses physiological erection. For erection of manmade structures, see construction.

Dysfunction

Failure of the erection mechanism is known as erectile dysfunction, or ED for short. ED in humans is treated with prosthetic devices, and with prescription drugs. Some prescription drugs are injected directly into the corpus cavernosum or used as urethral suppositories, directly causing erection even in the absence of sexual excitation, while others, such as Viagra, Cialis, or Levitra are taken orally and support erection that is due to sexual excitation.

Related Topics:
Erectile dysfunction - Prosthetic - Suppositories - Viagra

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Occasionally in men who have not undergone circumcision, the foreskin of the erect penis may be very tight and immobile on the shaft, thus interfering with normal erection. This condition is known as phimosis.

Related Topics:
Circumcision - Foreskin - Phimosis

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