Can Cycling Cause Penis Numbness, Erectile Dysfunction, and Prostate Cancer? This post and video address the concerns that many male cyclists have about penis numbness, erectile dysfunction, and prostate cancer. We think you will find this post reassuring. We also offer suggestions to avoid penis numbness and related problems, in the section called What Male Cyclists Can Do to Prevent Erectile Dysfunction.The post Can Cycling Cause Penis Numbness, Erectile Dysfunction, and Prostate Cancer? appeared first on Average Joe Cyclist.