由于性生活中,生殖器官在持续和反复的性刺激下,还是性欲不足,对性交冷淡,而且阴茎也难以勃起。这种情况被称为性功能障碍,出现的状况有很多种,如:性欲障碍、阳痿、勃起障碍、性交障碍、性高潮障碍、射精障碍等。
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