Ok this is my first time telling someone this so... hi im 14 years old and mmmm well i have a vein on my penus that is 2-3 inches long and it starts right by my testicles and ends at the tip of my penus's skin. when i get erections my skin doesnt peel back and when i do it myself it is hard to because the vein stops it from going back all the way and when i masterbate when i release the sperm afterwards i have to stop because it hurts to keep masterbating so i only get second of pleasure followed by pain and my erection goes away fast. I had this vein and problem for about 4 years now the vein seems to never go away or reduce in swelling its the color purple.Please help i dont know what to do.