Blood in ejaculate. It is possible that there is a small vein which connects to the prostate; it is imperative to visit with your urologist.
Here are... Do you mean seeing some blood in semen or discolored semen? Such sighting is nothing uncommon at times in some men, has irked them, & puzzled many medical professionals. Fortunately, the decades of experience confirmed there is nothing to worry or to be done as long as being comfortable, ok in DRE & UA, although antibiotics has been empirically used with mixed uncertain result. More tests? Option.