Your epididymis is the coiled structure that sits on top of each testicle and stores mature sperm. When arousal builds and does not move forward you may feel pressure warmth or a heavier sensation in the scrotum. That is common and usually harmless. But if you ever notice deep purple discoloration sudden swelling sharp one sided pain or fast changes in size that is not blue balls. Those symptoms need medical assessment right away to rule out conditions like torsion or infection. For real educati