Hello,
Masturbation doesnt cause any STD.
If there is no history of any unprotected sex with a stranger then,what you are describing is non-specific (ie non-STD)
urethritis (NSU) which may or may not be due to an infection. The initial step would be to do a culture of the discharge.
If the culture is negative, you probably do not have an infection. In such a case, the discharge is probably coming from either the prostate or Cowper's glands.
Your condition may be due to congestive
prostatitis.
Arousal without ejaculation causes the prostate to swell with fluid producing tension on the prostate’s capsule. This may occur with prolonged foreplay, with
coitus interruptus, or by holding back ejaculation during intercourse or masturbation.
There are a variety of symptoms that may occur with this condition. Stool passing through the rectum may push on the distended prostate producing a
penile discharge. Prolonged sitting (you sit on the prostate) can cause the discharge to be noted before voiding. At the end of urination, as the bladder is emptying out the last few drops of urine, it actually squeezes the prostate. If the prostate is congested, one may note fluid at the end of urination.
Just do sitting in a warm bath tub should help you.Also enjoy more sex so that you ejaculate more,which should help in decongesting your prostate.
If you don't get relief,then get a culture of prostatic fluid and urethral
endoscopy done after consulting a
urologist,but I hope it should be all right by sitting in a bath tub.
Thanks