Hi doctor, I had physical without taking precautions. Lights wer off. After physical, partner said, there wer blood spots on blankets. I went to washroom n checked, I had blood mark on below my penis tip, (not on tip or side by- it was just downside) I assumed blood on my tip, might be becoz I rubbed my penis on her clothes or while getting cuddles n all. So might be that. But I cleaned my penis n blood mark went away, there wer no harm on penis. Just want to know, what could be possibilities about blood? It is mine blood or her? This is just for my knowledge n to get things clear. Please guide. Thank you.