is normal, what is not, and when to get medical advice.
First, What Do Veins Actually Do?
Veins are blood vessels that help carry blood from the body back to the heart. Some veins sit deep inside the body, while others run closer to the surface of the skin. When your skin is thin, blood flow increases, or a vein becomes enlarged, those surface veins can become easier to see. Cleveland Clinic explains that veins are part of the circulatory system and help keep blood moving back toward the heart.
