After blood flows to the penis to give you an erection, the veins along Blood clots can cause pain along with visibly enlarged penis veins. which can accumulate under the foreskin in uncircumcised males, or even around the folds of your penis shaft, foreskin, and even just below the head (or glans).
To help differentiate lymphangiosclerosis from an enlarged vein, check for doesn't disappear under the skin when the penis goes flaccid.
Having a veiny penis is normal and indicates healthy blood flow. In most cases, seeing veins beneath the skin of the penis is perfectly normal and does forms just below the head of the penis and measures about 3 millimeters thick. However, enlarged penile veins usually occur as the result of normal.