I can second DLD's statements from my own experience: I had this a few times from intense manual girth work. Most of the time I even carried out the remaining minutes of my workout after there had been 2 or 3 drops of blood. And yet the bleeding stopped already during the workout. Most of the time the small trauma appears to be somewhere in the glans because it showed only in situations when I put a lot of pressure on the head (for example with dry jelqs or [words=http://www.mattersofsize.com/forum/showthread.php?64036-My-Best-Work-Ever-Penis-Enlargement-will-Be-Changed-Forever-gt-gt-Gain%20inches%20with%20SRT-Theory-and-Routine]
SRT[/words] size blasters where you have to grip with one hand right below the glans). It never appeared during SSJing.
That being said: imo you can even continue without rest but take it down a notch. You'll be more prone to bleed again in the next days if you go too hard on it. So there's nothing wrong with taking a break for 2 or 3 days either (such a short break is never problem, won't throw you back).