erectile dysfunction

Last edited 09/2020 and last reviewed 06/2023

Erectile dysfunction (ED) is defined as the persistent inability to achieve and/or maintain a penile erection sufficient to permit satisfactory sexual performance (1)

  • although a benign condition, ED may have a significant impact on the quality of life of the sufferers as well as their partners
  • ED is also considered as an early warning sign of potential cardiovascular disease (1)

Erection requires an intact parasympathetic reflex at S2 and S3. Ejaculation requires an intact sympathetic L1 root.

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