No sperm coming out after ejaculation masturbation last time it came Yellow semen today tried masturbation but sperm not came lower stomach pain after masturbation is it due to blockage? Im having some inflamed tube or something like vein in right testicle groin pain and pubic pain back pain is it mean testicle cancer?? Is Retrograde ejaculation means testicle cancer?? Im tensed age is 21 no history of cancer or undescended testicles but facing this issue and burning after last ejaculation?? Pl tell me problem what causes no sperm out but stomach pain