Good Afternoon, Doc! I am noticed black threads on my sperm after ejaculation, can you explain for me what it could be? I briefly checked online and reviled a lot men have the same problem but there is not a comprehensive answers from medical specialists to this issues! Thanks, Bob Dillaham.
Thanks for asking in Chat Doctor forum IN short: Those are secretion from prostateExplanation: You are right, because many a few observe their semen like this. Those thread like structures are the secretion from prostate and are normally found in the semen sometimes appearing little gray to black in color.  Hope you are satisfied with this answer.