Blood in the Semen
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Reviewed By:

Kenji Taylor, MD, MSc

Kenji Taylor, MD, MSc (Family Medicine, Primary Care Physician)

Dr. Taylor is a Japanese-African American physician who grew up and was educated in the United States but spent a considerable amount of time in Japan as a college student, working professional and now father of three. After graduating from Brown, he worked in finance first before attending medical school at Penn. He then completed a fellowship with the Centers for Disease Control before going on to specialize in Family and Community Medicine at the University of California, San Francisco (UCSF) where he was also a chief resident. After a faculty position at Stanford, he moved with his family to Japan where he continues to see families on a military base outside of Tokyo, teach Japanese residents and serve remotely as a medical director for Roots Community Health Center. He also enjoys editing and writing podcast summaries for Hippo Education.

Yoshinori Abe, MD

Yoshinori Abe, MD (Internal medicine)

Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.

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Content updated on Dec 6, 2023

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  • Semen has blood

  • Bloody semen

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About the Symptom

Semen is found in ejaculate, which is usually a cloudy milky color discharged from the penis during orgasm (ie: ejaculation). The presence of blood in semen (hematospermia) is clear visible as ejaculate becomes a blood-stained color.

Possible causes

Generally, Blood in the semen can be related to:

  • Hematospermia

    Hematospermia is the presence of bloody or blood-tinged semen. It is commonly seen after prostate biopsy (lasts for 3-4 weeks), radiation treatment for prostate cancer, genital and urinary cancers, infections, trauma, and systemic diseases.

Doctor's Diagnostic Questions

Your doctor may ask these questions to check for this symptom:

  • Have you ever had red or bloody semen?

  • Do you bleed easily from minor injuries?

  • Have you ever had red or brown urine?

  • Are your testicles or scrotum swollen?

  • Is your urine flow weaker?

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References

  • Mathers MJ, Degener S, Sperling H, Roth S. Hematospermia-a Symptom With Many Possible Causes. Dtsch Arztebl Int. 2017 Mar 17;114(11):186-191. doi: 10.3238/arztebl.2017.0186. PMID: 28382905; PMCID: PMC5387851.

    https://pubmed.ncbi.nlm.nih.gov/28382905/

Reviewed By:

Kenji Taylor, MD, MSc

Kenji Taylor, MD, MSc (Family Medicine, Primary Care Physician)

Dr. Taylor is a Japanese-African American physician who grew up and was educated in the United States but spent a considerable amount of time in Japan as a college student, working professional and now father of three. After graduating from Brown, he worked in finance first before attending medical school at Penn. He then completed a fellowship with the Centers for Disease Control before going on to specialize in Family and Community Medicine at the University of California, San Francisco (UCSF) where he was also a chief resident. After a faculty position at Stanford, he moved with his family to Japan where he continues to see families on a military base outside of Tokyo, teach Japanese residents and serve remotely as a medical director for Roots Community Health Center. He also enjoys editing and writing podcast summaries for Hippo Education.

Yoshinori Abe, MD

Yoshinori Abe, MD (Internal medicine)

Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.

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