Hi , i am regularly masturbating from last 4 yrs . during sex with any girl my penis erect for a very short time . i use my hand to discharge?

First try to stop M: See if penis remains erect longer once you stop masturbating. This will hopefully take care of the problem. Does problem occur both with or without a condom? Because problem does not occur with masturbation. Not advocating "unsafe" sex, providing neither you or partner have std & she is on bcpill or iud, worth trying withiout condom. See urologist re ? Viagra (sildenafil) or Cialis if problem continues.