White Fluid After Urination: What Could It Mean? - Urology

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White fluid discharge after urination?


I would like to ask the doctor about a rather obscure issue.
This situation has occurred twice.
The first time was three weeks ago in the evening, when my total fluid intake was less than 1000 cc, and I did not have dinner.
At the end of urination, I experienced a burning sensation, and just as the urine was drying, about 1 cc of a white liquid was expelled along with the urge to urinate.
After zipping up, I felt as if there was residual fluid in my urethra, but there wasn't any.
Later, within half an hour, I drank 2000 cc of water and forced myself to urinate, which alleviated the burning sensation and the presence of the white liquid.

The second occurrence was this morning during my second urination.
For breakfast, I only had a can of coffee, and again at the end of urination, there was a white liquid.
The situation was generally the same, except there was no significant burning sensation this time.
After drinking a large amount of water again, I did not notice any abnormalities.
I would like to ask the doctor if there are any precedents for these symptoms that I should be aware of before seeking medical attention.

A Cheng, 10~19 year old female. Ask Date: 2006/09/01

Dr. Xu Weikai reply Urology


A-Cheng: Hello, I believe that in your case, you may be experiencing low fluid intake, which results in concentrated urine and can lead to an increased risk of inflammation.
The recommended daily water intake is at least 3000 cc, and it is best to maintain a daily urine output of 1500 cc.
This is a response from Dr.
Hsu Wei-Kai, Director of the Urology Department at Taitung Hospital, Ministry of Health and Welfare.

Reply Date: 2006/09/01

More Info


The presence of white fluid after urination can be concerning and may indicate various underlying issues. Based on the symptoms you've described, including the occurrence of white fluid after urination, burning sensations, and the relationship with hydration levels, there are several potential explanations to consider.

Firstly, the white fluid you are experiencing could be related to concentrated urine due to low fluid intake. When you consume insufficient amounts of water, your urine becomes more concentrated, which can lead to irritation in the urinary tract. This irritation may manifest as a burning sensation and could also cause the release of a small amount of white fluid, which might be mucus or other substances that are normally present in the urinary tract.
In your case, the first incident occurred after a day of low hydration and no food intake, which could have contributed to the irritation. The subsequent episode, occurring after consuming only coffee for breakfast, suggests that your body may still be reacting to low hydration levels. Coffee is a diuretic, which means it can increase urine production and potentially lead to further dehydration if not accompanied by adequate water intake.

The fact that drinking a large amount of water alleviated your symptoms indicates that hydration plays a crucial role in your urinary health. It is generally recommended to maintain a daily fluid intake of at least 2-3 liters (about 8-12 cups) to ensure proper hydration and urinary function. When urine is diluted through adequate hydration, it typically appears lighter in color and is less likely to cause irritation.

Another consideration is the possibility of a urinary tract infection (UTI) or other infections. While you mentioned that the burning sensation was not present during the second episode, the presence of white fluid could still indicate an underlying infection or inflammation. UTIs can cause changes in urine appearance, including cloudiness or the presence of white blood cells and bacteria. If you notice persistent symptoms, such as increased frequency of urination, urgency, or any unusual odors, it would be wise to consult a healthcare professional for further evaluation.

Additionally, the white fluid could also be related to the presence of prostatic fluid in males, especially if you are experiencing this after sexual activity or ejaculation. The prostate gland produces fluid that is a component of semen, and sometimes, a small amount of this fluid can be expelled during urination, especially if the bladder is full.

In summary, while occasional white fluid after urination may not be alarming, it is essential to monitor your symptoms closely. If you continue to experience these episodes, especially if they are accompanied by other symptoms such as pain, burning, or changes in urine color or odor, it is advisable to seek medical attention. A healthcare provider can perform tests, such as a urinalysis, to determine if there is an infection or other underlying condition that needs to be addressed. In the meantime, focus on maintaining adequate hydration and avoiding irritants such as caffeine and alcohol, which can exacerbate urinary symptoms.

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