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Anejaculation is the pathological inability to ejaculate in males, with (''orgasmic'') or without (''anorgasmic'') orgasm. ==Causes== It can depend on one or more of several causes, including: *Sexual inhibition *Pharmacological inhibition. They include mostly antidepressant and antipsychotic medication, and the patients experiencing that tend to quit them〔() and () 〕 *Autonomic nervous system malfunction *Prostatectomy - surgical removal of the prostate. *Ejaculatory duct obstruction *Spinal cord injury, in which the rate of being able to ejaculate varies with the type of lesion, as detailed in the table at right. *old age Anejaculation, especially the ''orgasmic'' variant, is usually indistinguishable from retrograde ejaculation. However, a negative urinalysis measuring no abnormal presence of spermatozoa in the urine will eliminate a retrograde ejaculation diagnosis. Thus, if the affected man has the sensations and involuntary muscle-contractions of an orgasm but no or very low-volume semen, ejaculatory duct obstruction is another possible underlying pathology of anejaculation. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「anejaculation」の詳細全文を読む スポンサード リンク
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