U.S. doctors online nowAsk doctors free
Jordan
A 18-year-old male asked:

I have dark veins popping out of my penis, especially when i have an erection, dark veins mean lots of waste product, should i drink more water ?

1 doctor answer1 doctor weighed in
Dr. John Fung
General Surgery 40 years experience
Normal: Discoloration of the penis during or shortly after erection should not be concerning. During erection, increased blood flow to the penis may lead to reddening, or even look purplish in color. This is not toxicity.
Last updated Jun 4, 2014

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.