Penile erection is a complex interaction of the nervous system, blood circulation, hormones, and emotion state. Therefore, symptoms may suggest a psychological problem such as
depression, and/or a medical problem such as diabetes. Any one of these conditions can lead to erectile dysfunction.
- A less firm penis
- Fewer erections
- Fewer spontaneous nighttime erections
Nerves that cause sensation in the penis differ from those that cause erections, so it is possible to feel sensations without getting an erection. Also, orgasm is possible without erection.
Erectile dysfunction. EBSCO DynaMed website. Available at: http://www.dynamed.com/topics/dmp~AN~T113875/Erectile-dysfunction. Accessed January 29, 2021.
Rew KT, Heidelbaugh JJ. Erectile dysfunction. Am Fam Physician. 2016;94(10):820-827.
Symptoms & causes of erectile dysfunction. National Institute of Diabetes and Digestive and Kidney Diseases website. Available at: https://www.niddk.nih.gov/health-information/urologic-diseases/erectile-dysfunction/symptoms-causes. Accessed January 29, 2021.
What are the symptoms of ED? Urology Care Foundation website. Available at: http://www.urologyhealth.org/urologic-conditions/erectile-dysfunction/symptoms. Accessed January 29, 2021.
Last reviewed March 2020 by
EBSCO Medical Review Board
Adrienne Carmack, MD
Last Updated: 1/29/2021