Varicocele can affect anyone with testicles at any age. some cases are congenital (present at birth) while other people may notice it during teenage years. Because that is the period of puberty when blood flow to the genitals increases. it may end up preventing the testicles from growing properly.
Sexual activities usually start with a desire, then arousal, erection, and finally end with ejaculation. a lot of men may experience premature ejaculation at some point in their life. this means they will release semen with little stimulation or shortly after penetration during sexual intercourse.