在美国一项涉及1000万人的调查研究中，阳痿在超过18岁的人群中普遍流行。随着年龄的增长，人体的血液供应改变、荷尔蒙变化、神经功能障碍和使用各种各样的药物，都会单独或联合起来导致阳痿的发生，所以，阳痿不应当只是认为是年龄老化的一个过程。
因此，对阳痿的病原学检查引起足够的重视，这样才能够制定有针对性的治疗方案。--译自《柳叶刀》 转载请注明出处
Impotence is a highly prevalent condition occurring in 10 million American men over the age of 18 years. Alterations in vascular supply, hormonal changes with age, neurological dysfunction and the use of a variety of medications may combine and contribute to impotence. Impotence should not be considered a normal part of the aging process. Careful attention to evaluation for the aetiology of impotence will lead to making appropriate therapeutic choices.
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