Blue balls is a slang term for epididymal hypertension, which is a condition that can occur during a state of male sexual arousal. It is characterized by an uncomfortable testicular sensation, including mild pain, discomfort, aching, heaviness, and sometimes a faint bluish color in the testes. The cause of blue balls is a large amount of blood circulation to the genital area, specifically the penis and testicles, without the release of tension associated with orgasm/ejaculation. Other causes of painful symptoms include diabetic neuropathy in the groin area, epididymitis, infection, kidney stones, mumps, orchitis, and testicular cancer. The best way to get rid of the discomfort is to either ejaculate or distract oneself by engaging in non-arousing activities. It is important to note that blue balls is not dangerous and it is not a reason to pressure a partner into sexual activity.