Hello2;
With jelqing and other forms of PE that forces blood into the penis, you can expect the effect of ballooning the veins. Its a necessary growth to allow more oxygen and blood to flow and will aid in your gains.
Veins near the surface has a dark color to them, and if you have no abnormalities, pain, bleeding, etc… you will be fine. When I PE I listen to the feel and the looks of henry as they will be your singling to overdoing it.
You are wise to notice this, but don’t let it alarm you as it is a needed growth factor. As you progress, them veins will become more pronounced!
Modemmer.