Erectile Dysfunction and impotence are two words for the same condition. Both means that the man has difficulty getting penis rigid enough to complete sexual intercourse.
There are many websites talking about this subject, but we advise you to see the following websites:
healthline.com/health/erectile-dysfunction
webmd.com/erectile-dysfunction/
mayoclinic.org/diseases-conditions/erectile-dysfunction/basics/definition/con-20034244
