blood in my semen

I ejaculated with blood in my semen. What is the cause??

[Ketan K Badani]

Several things can cause blood in semen (called hematospermia).  Most of the time it is self-limited and goes away on it's own without any specific cause or treatment.  Usually inflammation of the prostate/seminal vesicle or post-biopsy can be causes.

[vic36]

thank you , for the information,and i will see a doctor in this matter.