What is this red lump on the tip of my penis? Okay, I m 13, uncut, foreskin is retracting smoothly as it should through pubescence. However, at the end of my urethra , where urine and ejaculate comes out, there is a red bump. It leads right into my frenulum. To best describe it, it looks like a normal glans penis , then comes up to the tip, and it becomes red, curves upward (maybe a millimeter or two), then narrows back down into my frenulum. It doesn t hurt. I have no trouble urinating, due to nocturnal emissions, I can ejaculate quite okay. I m just wondering if anyone else has had this problem, as I m quite self conscious about it. Just in case this is relevant, I have a verical seal on my left testicle.