Yellow, Foamy Urine: Possible Causes and Solutions - Urology

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Yellow and foamy urine?


Hello Dr.
Liu, I would like to ask about having very yellow urine with bubbles and a slightly oily sensation.
I previously visited a clinic near my home, but they said everything was fine, yet I still have doubts.
Could you please provide some insight or further solutions? Thank you! A person in need of help, June 23, 2004.

Wúzhù de rén, 20~29 year old female. Ask Date: 2004/06/23

Dr. Liu Jianting reply Urology


It's okay! Urine is naturally light yellow.
If you're concerned, please visit a hospital and consult a urologist for further examination of your urine.

Reply Date: 2004/06/23

More Info


Hello, thank you for reaching out with your concerns regarding the yellow, foamy urine you've been experiencing. It's understandable to feel anxious when faced with changes in bodily functions, especially when they are accompanied by unusual characteristics like foaminess or an oily sensation. Let's delve into the possible causes and solutions for your symptoms.

Firstly, yellow urine can be attributed to several factors. The most common reason is dehydration, which concentrates the urine and gives it a darker yellow color. If you have been consuming less water than usual, or if you have been sweating more due to heat or physical activity, this could lead to concentrated urine. Ensuring adequate hydration is crucial, and you should aim to drink enough fluids throughout the day, especially water.

Foamy urine, on the other hand, can indicate the presence of protein. When urine is foamy, it may suggest that there is an excess of protein being excreted, a condition known as proteinuria. This can occur due to various reasons, including kidney issues, such as glomerulonephritis or nephrotic syndrome, where the kidneys are unable to filter proteins properly. Other potential causes of proteinuria can include dehydration, high blood pressure, diabetes, or even strenuous exercise.

The oily sensation you mentioned could be related to the presence of lipids in the urine, which can also be a sign of nephrotic syndrome. In this condition, the kidneys leak protein and lipids into the urine, leading to symptoms such as swelling, foamy urine, and sometimes a change in urine color.

Given that you have previously consulted a local clinic and were told that everything was fine, it may be beneficial to seek a second opinion or further evaluation. A healthcare provider can conduct a urinalysis to check for protein levels, specific gravity, and other abnormalities. They may also recommend blood tests to assess kidney function, including serum creatinine and blood urea nitrogen (BUN) levels, as well as tests for diabetes and other conditions that could affect kidney health.

If you notice any additional symptoms such as swelling in your legs or face, fatigue, or changes in appetite, it is essential to report these to your healthcare provider, as they can provide further insights into your condition.

In summary, while yellow, foamy urine can be benign and related to dehydration, it can also indicate underlying health issues, particularly related to kidney function. Staying hydrated is crucial, but if your symptoms persist or worsen, please seek further medical evaluation. It’s always better to err on the side of caution when it comes to your health. Thank you for your inquiry, and I hope this information helps you find clarity and reassurance regarding your symptoms.

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