男子身材瘦为啥阴茎反而大

来自杨圣青医生的专业解答，快打开看看是否又获得了新的知识点～

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寻医问药网

病情分析：阴经大小与身体胖瘦没什么关系，主要是遗传问题，疲软时小时由于没有充血，勃起粗长是海绵体在性激素的刺激下充血充分，

杨圣青

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问题描述：男子身材瘦为啥阴茎反而大病情描述（发病时间、主要症状等）：我老公身材较瘦，老公阴茎平时疲软时似乎也不大，但勃起时的阴茎却是又粗又长，这是为啥？