请问，有时脑子里一想性方面的东西，阴茎就立刻勃起，...

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寻医问药网

病情分析：您好，这个是性幻想，年轻人性欲旺盛，性幻想或者性刺激或者物理性摩擦都可能勃起，是正常现象

刘兴志

主治医师

提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医

问题描述：请问，有时脑子里一想性方面的东西，阴茎就立刻勃起，过几秒不想了，就立刻软了下去，待会儿再一想就又勃起了，一会又软了．一会软一会勃起，不会引起阳痿吗？这样算手淫吗？不会引起阳痿吗？这样算手淫吗？