I have been doing some research online, I am a nurse. The description I've read from others who have had translucent orange-yellow solids in semen just as I have had , do not seem to be getting a good answer from physicians. MDs are suggesting blood[ i can tell you it's not blood, although it is about the colour of serous fluid, a bit more orange] or they are suggesting liths from the prostate or kidney stones, but that seems unlikely too, as these solids are not that hard, they can be squished between the fingers, they have the consistency of a hardened translucent jelly.