我今年55岁,身体总体上健康。但近年来,我发现自己性生活时射精量很少,有时候射精还很没力,基本上是流出来的。另外,我感觉阴茎勃起需要的时间延长。我很困惑,这到底是50多岁人正常的表现,还是某些疾病的表现呢?应该如何处理对待?有没有好药或好的疗法可以改善这种情况。 I am 55 years old and I am generally healthy. But in recent years, I found that when I had sex, my ejaculation was very rare, and sometimes my ejaculation was still very weak. I basically came out. In addition, I feel the penis erection takes longer. I am puzzled as to whether this is the normal performance of the 50s or how certain illnesses are treated, what should be done and whether there are good medicines or good therapies to improve the situation.