Red Semen: Causes and Concerns for Men - Urology

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The semen is expelled with a red color resembling blood?


Hello, Dr.
Du.
This is the first time I've experienced this symptom: my semen has a small amount of bright red blood in it during ejaculation.
I feel quite anxious and would like to ask if the blood in my semen could be related to the fact that I ate red dragon fruit that day.
I also masturbate about 1-2 times a day; could this be related to the frequency of masturbation?

A Qiang, 20~29 year old female. Ask Date: 2016/10/22

Dr. Du Shixi reply Urology


Hello, some people experience discoloration in their urine after eating dragon fruit, but I have not encountered any discoloration in semen.
Please consult a urologist for an examination.
It is safer this way.
The frequency of masturbation is not related, but please be mindful not to let it affect your daily life.
Thank you.

Reply Date: 2016/10/22

More Info


The presence of red semen, also known as hematospermia, can understandably cause concern for many men. Hematospermia is defined as the presence of blood in the semen, and while it can be alarming, it is not always indicative of a serious medical condition. There are several potential causes for this phenomenon, and understanding them can help alleviate some of the anxiety associated with it.

One of the most common causes of hematospermia is inflammation or infection in the reproductive tract. This can include conditions such as prostatitis (inflammation of the prostate gland), epididymitis (inflammation of the epididymis), or urethritis (inflammation of the urethra). These conditions can result from bacterial infections, sexually transmitted infections, or even non-infectious causes such as trauma or irritation.

Another potential cause could be related to the blood vessels in the reproductive system. Sometimes, small blood vessels can rupture during ejaculation, leading to a small amount of blood mixing with the semen. This can occur due to vigorous sexual activity, including frequent masturbation, which you mentioned occurs 1-2 times a day. While this frequency is generally considered normal, if the activity is particularly vigorous or if there is a history of trauma, it could contribute to the issue.

Dietary factors, such as consuming certain foods, can also affect the appearance of semen. You mentioned eating red dragon fruit (pitaya) on the day you noticed the red coloration. While it is unlikely that this fruit would cause blood in the semen, it could potentially alter the color temporarily due to its vibrant pigments. However, if the red coloration persists beyond this isolated incident, it would be prudent to seek medical advice.

Other less common causes of hematospermia can include benign prostatic hyperplasia (BPH), prostate cancer, or other malignancies in the reproductive system. Although these conditions are less common in younger men, they should not be ruled out, especially if the symptom persists or is accompanied by other concerning signs such as pain, swelling, or changes in urinary habits.

If you experience red semen again, or if you notice any additional symptoms such as pain during ejaculation, difficulty urinating, or persistent blood, it is essential to consult a healthcare professional. A thorough examination, including a physical exam and possibly imaging studies or laboratory tests, may be necessary to determine the underlying cause.

In summary, while the presence of red semen can be alarming, it is often due to benign causes such as inflammation or minor trauma. However, if the symptom persists or is accompanied by other concerning signs, seeking medical evaluation is crucial to rule out any serious conditions. Remember that open communication with a healthcare provider can help address your concerns and provide appropriate care.

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