What causes blood in my semen?
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I noticed small streaks of blood in my semen. It happened once before, about one year ago. Do I have to worry about something serious, like cancer?Most commonly, bloody semen happens after a man has a medical procedure. Many men who have a prostate biopsy will have some blood in their semen for several days afterward. A cystoscopy (a catheter insertion through the urethra into the bladder) can also lead to temporary hematospermia, especially if the doctor takes biopsies of the bladder lining.
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About the Author
Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing
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