In most cases, seeing veins beneath the skin of the penis is perfectly normal and does not require medical attention.
Several factors influence vein visibility, including:
frequency and intensity of physical activity
underlying medical conditions
In this article, we discuss why the veins in the penis might appear prominent and what this means.
We also review potential underlying medical conditions that contribute to penis vein visibility and when to see a doctor.
Why does it happen?
The appereance of veins in the penis may vary with age.
There are several veins and arteries that carry blood to and from the spongy erectile tissue in the penis.
Veins may look larger than usual during and immediately following an erection. Although the appearance of prominent veins may cause alarm, they indicate healthy blood flow.
Genetics and age can influence skin thickness, which may make veins appear more prominent or bigger than usual.
Also, blood clots and other conditions that affect the cardiovascular system can trap blood in the veins, which may affect how these blood vessels look.