阴茎勃起时会增大，但是软下去了就会缩的很小，这是什...

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寻医问药网

病情分析：你好，你的情况勃起的时候由于充血造成的体积增大，这个是很正常的<br>

马凯

主任医师

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：阴茎勃起时会增大，但是软下去了就会缩的很小，这是什么情况呢？