Urethral Discharge: Cowper's Gland or Prostate Fluid? - Urology

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Urinary bulbourethral fluid? Prostatic fluid?


Hello, doctor.
Recently, I've noticed that a lot of clear fluid is leaking from my urethra during erections, which didn't happen before.
Is this called bulbourethral gland fluid or prostatic fluid? Does the excessive amount have any impact on my health? Can regular exercise, like jogging, help improve this?

Kunrao, 20~29 year old female. Ask Date: 2012/03/06

Dr. Xu Weikai reply Urology


Concern: Hello, this is a normal glandular secretion, and there is no need for special concern or worry.
As the level of excitement increases, the secretion will also increase.
Conversely, if there is insufficient stimulation, even with an erection, the secretion will still be minimal.
If there are any unclear points, feel free to ask again, and we can discuss and research further.
Answers from the internet should only be used as a reference; if necessary, it is important to seek medical attention at a healthcare facility.
This response is provided by Dr.
Hsu Wei-Kai, Director of the Urology Department, Taitung Hospital, Department of Health, Executive Yuan.

Reply Date: 2012/03/06

More Info


Understanding urethral discharge, particularly in the context of sexual arousal, can be quite complex. The clear fluid you are experiencing during excitement is likely a combination of secretions from the Cowper's glands (also known as bulbourethral glands) and possibly some prostatic fluid.
The Cowper's glands are responsible for producing a pre-ejaculatory fluid that serves several purposes. This fluid helps to lubricate the urethra, neutralizes any acidity in the urethra from urine, and provides a more favorable environment for sperm. This pre-ejaculatory fluid is typically clear and can vary in volume from person to person. On the other hand, the prostate gland contributes to the seminal fluid, which is released during ejaculation.
In your case, the increased volume of clear fluid during arousal could be attributed to several factors. It is not uncommon for men to notice changes in the amount of pre-ejaculatory fluid as they age or due to changes in sexual health. Factors such as hydration levels, hormonal changes, and even psychological factors can influence the amount of fluid produced.
Regarding your concern about whether the increased volume of fluid could have any negative effects on your health, generally, it is not a cause for concern. The body regulates these secretions naturally, and unless you are experiencing discomfort, pain, or other unusual symptoms, this change is typically benign. However, if you notice any accompanying symptoms such as pain during urination, changes in urine color, or any unusual odors, it would be wise to consult a healthcare professional.

As for whether regular exercise, such as jogging, can improve this situation, the answer is yes. Regular physical activity can enhance overall circulation, improve hormonal balance, and promote better sexual health. Exercise can also help reduce stress and anxiety, which can positively impact sexual function and arousal.
In conclusion, the clear fluid you are experiencing is likely a normal physiological response, primarily from the Cowper's glands. It is usually not a cause for concern unless accompanied by other symptoms. Maintaining a healthy lifestyle, including regular exercise, can contribute positively to your sexual health. If you have ongoing concerns or if the situation changes, it is always best to consult with a healthcare provider for personalized advice and evaluation.

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