Urine Color Changes: What You Need to Know at 17 - Urology

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Urinary issues


Hello, doctor.
I am 17 years old and I have a question.
Recently, I have noticed that the color of my urine is lighter; sometimes it is clear and other times it is more yellow.
I go to the bathroom approximately every two hours and I drink around 1500 ml of fluids daily, usually drinking a little when I feel thirsty.
In the morning, my urine tends to be more yellow, and if I drink less water, it becomes even more yellow.
Doctor, I would like to know if this is normal and whether it could be because I only eat three meals a day, which might mean my body doesn't have waste to eliminate.

k, 10~19 year old female. Ask Date: 2024/02/19

Dr. Lin Wenxu reply Urology


Hello Mr.
K: The color of urine is related to the amount of water intake.
When you drink more water, the urine is lighter in color, and when you drink less, it is darker.
If you are still very concerned, you can go to the hospital for a simple urine analysis and a blood test for kidney function.
Dr.
Lin Wun-Hsu, Urology Department, Nantou Hospital.

Reply Date: 2024/02/19

More Info


Understanding urine color changes can be quite important, especially for someone at the age of 17, as it can reflect hydration levels, dietary habits, and overall health. Based on your description, it seems that your urine color varies between being clear and a deeper yellow, which is generally normal and can be attributed to several factors.

Firstly, urine color is primarily influenced by hydration. When you are well-hydrated, your urine tends to be lighter or even clear. Conversely, when you are dehydrated, your urine becomes more concentrated, resulting in a darker yellow color. The fact that you mentioned your urine is clearer when you drink around 1500 ml of water and darker in the morning or when you drink less is a typical response of the body to hydration levels. It’s important to note that urine color can fluctuate throughout the day based on your fluid intake, physical activity, and even the foods you consume.

Regarding your concern about only eating three meals a day, it’s essential to understand that the body continuously produces waste, regardless of meal frequency. The kidneys filter blood to remove waste products, which are then excreted as urine. Therefore, even if you are eating only three meals, your body is still processing and eliminating waste. However, if you are not consuming enough fluids, this can lead to more concentrated urine, which appears darker.

In addition to hydration, certain foods, medications, and supplements can also affect urine color. For instance, consuming beets, berries, or certain vitamins (like B vitamins) can lead to changes in urine color. If you notice any persistent changes in urine color that are not related to hydration or diet, or if you experience any discomfort, pain, or other symptoms, it would be advisable to consult a healthcare professional.

In summary, your observations about urine color changes are likely normal and primarily related to your hydration status. To maintain optimal hydration, aim to drink water consistently throughout the day, not just when you feel thirsty. If you have any further concerns or if you notice any unusual symptoms, don't hesitate to seek medical advice. It's always better to be proactive about your health, especially during your teenage years when your body is still developing.

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