Premature ejaculation is a male sexual dysfunction characterized by short, easily stimulated ejaculation that occurs always or nearly always before or within one minute of vaginal penetration.
It is involuntarily controlled and causes negative personal consequences like distress, frustration and avoidance of sexual intimacy.
Exact etiology and risk factors are unknown.
Transcutaneous electrical stimulation to the perineum may help increase the time taken to ejaculate during masturbation in men with premature ejaculation, without adverse consequences, as shown in a study.
Use of clomipramine as an on-demand treatment of premature ejaculation is well tolerated and effective, with the results of a phase III study showing increased ejaculation time during vaginal penetration.
While most patients do not have such concerns, some young men treated for testicular cancer experience sexual dysfunction and other reproductive concerns 2 years after diagnosis, a recent study has found.
Coadministration of DHA and vitamin E supplements results in increased sperm motility, but no significant changes have been observed in sperm morphology and vitality in asthenozoospermic men, a study has shown.