i have had this problem for over a year now....one day when in the bath i noticed some discolouration that looks like bruising on the glans underneath (facing away from me if that makes sence)...under natural daylight i can see this grayish colour surrounding the bruise which covers the whole bottom half of my glans....i have nevcer really given it a chance to heal as i "touch it" and have sex quite frequently (its very rare for me to go a day without either having sex or masturbating). so im going to not touch it for a couple of weeks to see if it does anything. could this be an std? do any std's have this as a symptom? other then the discolouration there are no other symtoms. any idea of what this could be and what i can do to make it heal?