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Blood in semen as a symptom of diseases
Last reviewed: 04.07.2025

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Blood in semen may be present as a symptom of hematospermia. Hematospermia can be true or false.
The presence of blood in the ejaculate is detected when changes in the color of the sperm are visible. It becomes brownish or reddish-brown. It happens that the ejaculate is stained with scarlet blood.
In true hematospermia, blood mixes with ejaculate in the man's testicles or in his appendages. Also, with this disease, blood and sperm can mix in the seminal vesicles or in the prostate gland. The sperm in this case is brown or brownish-red.
In false hematospermia, blood and ejaculate mix in the urethra. In this case, it colors the sperm scarlet or streaks of blood are found in the sperm.
It has already been said earlier that a change in the color of the ejaculate can be a sign of various types of chronic diseases, infectious and inflammatory processes of the pelvic organs. Also, similar symptoms are caused by cysts, benign tumors and oncological processes of the male genitourinary system. Medical interventions in various organs located in the pelvis lead, like diseases, to the temporary appearance of blood in the sperm. To become more familiar with the causes of blood in the sperm, you need to carefully read the previous sections.
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Blood in urine and semen
It happens that not only the ejaculate changes color, but also the urine of a man. Sometimes representatives of the stronger sex pay attention to the fact that they have blood in their urine and sperm.
This symptom most often means a serious disease - prostate cancer. Unfortunately, this disease is recognized at the late stages of the oncological process. Therefore, the chances for a man to be cured from it are small.
In addition to the above symptom, oncological processes in the prostate can also manifest themselves with the following signs:
- increased frequency of urination,
- the appearance of pain in the perineal area.
But sometimes not a single such symptom is noted, so the person does not seek help from specialists. Therefore, it happens that with prostate cancer, not early signs of the disease appear, but those that characterize the stages of the appearance of metastases. These include:
- the presence of pain in the bones (in the pelvis, hips and spine),
- the appearance of fractures,
- the occurrence of pain in the chest area.
If cases of prostate cancer have already gone too far, then the man begins to be bothered by symptoms such as:
- acute urinary retention,
- sudden weight loss and weakening of the body,
- the appearance of paleness of the skin, as well as an earthy tint to the skin.
The last two symptoms are characteristic of the already begun intoxication of the body in the last stages of cancer.
It happens that the appearance of blood in urine and sperm is accompanied by other bad changes in the body. These include:
- the occurrence of erectile dysfunction or impotence (due to damage to the nerves responsible for this process),
- visible decrease in the volume of ejaculate (due to the fact that tumor processes begin to reduce the channel for ejaculation of sperm).
Blood instead of sperm
In some cases of anomalies with the male body, blood flows instead of sperm during ejaculation. The reasons for this phenomenon are different.
For example, it happens that during ejaculation, blood comes out instead of sperm in young men who have a short frenulum or phimosis (narrowing of the foreskin). During sexual intercourse, drops of bloody fluid begin to come out of the urethra of such a man instead of the expected ejaculate. Having discovered such symptoms, you need to consult a urologist, and if necessary, an andrologist.
There are cases when blood starts to be released instead of sperm during sexual intercourse. There is no discomfort or pain, and there is also an orgasm. Although the ejaculate does not have a characteristic whitish appearance, but is dark bloody (or brown). At the same time, at first the discharge may have a bright scarlet color. Such symptoms are typical for bleeding from the urethra. If the described cases are not isolated, then you should definitely consult a urologist.
However, doctors believe that the regular appearance of blood instead of sperm is considered either a serious inflammation or a sign of oncological disease of the pelvic organs. Therefore, you should not put off visiting a specialist "on the back burner", but make an appointment immediately to undergo an examination and all necessary diagnostic procedures.
Blood clots in semen
Blood clots found in sperm should not always worry young men. Experts recommend taking any decisive action only when the situation repeats itself more than ten times in a row. As a rule, men under forty who contact an andrologist with such a problem can undergo a comprehensive examination. But the doctor will not prescribe treatment, since the cause of such a symptom will not be revealed, and the unpleasant manifestation will soon pass on its own.
Men over the age of forty should not treat their health so frivolously. And at the first appearance of blood clots in the ejaculate, it is necessary to rush to a specialist for a consultation.
The formation of bloody clots in the ejaculate can be caused by various diseases, namely:
- the presence of stones in the kidneys or bladder,
- the appearance of prostatitis,
- tumor processes in the prostate gland,
- the presence of cysts in the genital organs responsible for reproductive functions,
- the appearance of stones that are located in the ejaculatory duct or in the seminal ducts,
- the presence of papillary prostate adenoma in the patient's medical history,
- pathological enlargements that are present in the seminiferous tubules,
- various injuries in which the bladder and other genital organs were damaged,
- persistent increase in blood pressure,
- presence of hemorrhagic diathesis.
Blood mixed with sperm is not always the cause of any disease. Usually, when blood comes out with ejaculate, a man under forty years old needs to remember whether he had any injury. If there was an injury, it is best to maintain a gentle regime of physical activity for some time and rest more. It is possible that the unpleasant symptom will not appear again and the problem will go away on its own.
If, along with such an alarming sign, a man begins to feel other ailments, this is a reason to see a doctor. For example, a person begins to notice that he has pain during ejaculation, pain during urination, swelling in the scrotum, pain in the groin area, pain in the back, and blood in the urine. In this case, an increase in body temperature is also possible. All of the above symptoms, individually and together, combined with the appearance of blood in the sperm, are considered signs of serious diseases. Therefore, a man who is concerned about his health should not delay a visit to the doctor and undergo an examination in the near future.
The above recommendations apply to representatives of the stronger sex who have not yet reached the age of forty. But if the ejaculate is stained with blood in a person who is already over forty, then this signal cannot be ignored. A visit to the doctor, even without additional symptoms, will be a good investment in your own health.
Blood streaks in semen
Blood streaks in sperm indicate that a man has false hematospermia. In true hematospermia, the ejaculate is brown in color - this means that the blood is mixed in it evenly. Similar dysfunction occurred in the following organs of the male pelvis:
- testicles,
- vas deferens,
- seminal vesicles,
- prostate.
In false hematospermia, blood mixes with sperm in the urethra. Therefore, the ejaculate does not have time to completely acquire a uniform color, and only streaks of blood appear in the man's ejaculate.
If symptoms of false hematospermia are detected, a man should immediately contact a urologist, because such phenomena may indicate various health problems. In particular, young men should not postpone visiting a specialist, since delay in treating the disease can negatively affect the sexual reproductive functions of a young man. In addition, false hematospermia can cause an infectious disease that will negatively affect the entire human body. And will lead to infection of other organs of the genitourinary system.
Usually, in young men, false hematospermia is a symptom of some inflammatory disease. Most often, the prostate, seminal vesicles and epididymis of the man are involved in this process.
Traces of blood in semen
Not always the ejaculate of a man is completely colored brown, brownish or scarlet. It happens that under certain circumstances representatives of the stronger sex find traces of blood in the sperm.
Most often, such people do not have a stormy sex life, they spend their time with one partner. Therefore, it is difficult to suspect them of venereal infections. Of course, specialists do not make a diagnosis without examining the patient. But usually with such symptoms, a man is diagnosed with vesiculitis.
Vesiculitis is an inflammatory process that occurs in the seminal vesicles. But vesiculitis does not appear on its own: this disease is a consequence of previously occurring inflammations of other organs of the male genitourinary system. These diseases include orchitis, urethritis and prostatitis. All of the above diseases are infectious in nature, therefore they spread to other organs of the male genitourinary system.
To clarify a little, orchitis is an inflammation of the testicles (or one testicle) of a man. Such inflammatory processes can be caused by various infections and be the consequences of flu, mumps, typhoid, brucellosis, pneumonia, rheumatic polyarthritis, gonorrhea, etc. Orchitis can also be caused by other inflammatory processes in the genitourinary system.
Urethritis is an inflammatory process that occurs in the urethra. Not only men, but also women suffer from urethritis. This disease can also have an infectious or non-infectious origin.
Prostatitis is an inflammatory process found in the prostate gland. Prostatitis, like urethritis, can be infectious or non-infectious. There are also chronic and acute stages of the disease. Non-infectious causes of prostatitis include an unhealthy lifestyle - sedentary work and rest, systematic hypothermia, decreased immune system, alcohol abuse, lack of physical activity, prolonged abstinence from sexual intercourse or, conversely, sexual intemperance. Infectious causes of prostatitis include the presence of foci of chronic infections in the body that enter the prostate gland through the bloodstream. Infectious prostatitis can also be caused by various pathogens that enter the prostate gland through sexual intercourse.