Low Urine Output Despite High Water Intake: Possible Causes Explained

Q: Low Urine Output Despite High Water Intake: Possible Causes Explained

Alan Weng： Hello, you can keep a voiding diary： record the time and amount of water you drink, as well as the time and volume of each urination. <br>It is recommended to keep this record for at least 3 days, preferably 7 days. <br>Then bring it to your outpatient appointment, and

Drinking a lot of water but having a low urine output?

Hello Doctor: Since around May of this year, my urine output has been very low.
Every morning when I wake up, I drink about 700 to 1000 cc of water to help with bowel movements.
In the past, I would feel the urge to urinate about an hour after drinking water and would typically urinate within four to five hours.
However, since May, the urge to urinate has decreased, and my urine output has also been very low.
I have a history of anorexia, and sometimes after eating, I would vomit.
This year, my anorexia has somewhat relapsed, and my food intake has decreased; some days I only eat one meal, and even that meal might be completely vomited due to discomfort.
Could this be the reason for my abnormal urine output?

ALAN Weng, 20~29 year old female. Ask Date: 2012/11/05

Dr. Xu Weikai reply Urology

Alan Weng: Hello, you can keep a voiding diary: record the time and amount of water you drink, as well as the time and volume of each urination.
It is recommended to keep this record for at least 3 days, preferably 7 days.
Then bring it to your outpatient appointment, and we can assess whether your daily fluid intake and urinary output are normal.
If you have any further questions, feel free to ask, and we can discuss and research together.
Online answers should only be used as a reference; if necessary, it is important to seek medical care at a healthcare facility.
This message is from Dr.
Hsu Wei-Kai, Chief of Urology, Taitung Hospital, Department of Health, Executive Yuan.

Reply Date: 2012/11/05

More Info

Low urine output despite high water intake can be a concerning symptom and may indicate underlying health issues. In your case, it appears that you have been experiencing a significant decrease in urine output since May, despite consuming a considerable amount of water each day. This situation can arise from various factors, and understanding these can help you address the issue effectively.

1. Dehydration and Fluid Retention: Even though you are drinking a lot of water, if your body is not able to absorb or utilize it effectively, you may still experience low urine output. Conditions such as dehydration, which can occur due to vomiting or reduced food intake, can lead to your body retaining water to compensate for the perceived lack of fluids. This retention can result in less frequent urination.

2. Kidney Function: The kidneys play a crucial role in regulating fluid balance and urine production. If there is any impairment in kidney function, it can lead to decreased urine output. Given your history of eating disorders, it is essential to consider that fluctuations in body weight, hydration status, and nutritional intake can affect kidney health. A thorough evaluation of kidney function through blood tests (such as serum creatinine and electrolytes) and urine tests may be warranted.

3. Hormonal Factors: Hormones such as antidiuretic hormone (ADH) regulate water retention in the body. If there is an imbalance in these hormones, it can lead to altered urine output. Stress, anxiety, and other psychological factors can influence hormone levels and may contribute to changes in urination patterns.

4. Dietary Intake: Your reduced food intake and episodes of vomiting can significantly impact your overall hydration status and electrolyte balance. A lack of essential nutrients can lead to various metabolic disturbances, which may manifest as changes in urine output. It is crucial to maintain a balanced diet to support overall health and kidney function.

5. Psychological Factors: Given your history of anorexia and current symptoms, psychological factors may also play a role in your urinary patterns. Stress and anxiety can lead to changes in bodily functions, including urination. It is essential to address any underlying psychological issues with the help of a mental health professional.

Recommendations:
- Hydration: Ensure you are drinking enough fluids throughout the day, especially if you are experiencing vomiting or reduced food intake. Aim for at least 2-3 liters of water daily, adjusting based on your activity level and climate.

- Dietary Changes: Focus on a balanced diet rich in fruits, vegetables, whole grains, and lean proteins. This can help improve your overall health and may positively impact your urinary output.

- Medical Evaluation: It is crucial to consult with a healthcare professional for a comprehensive evaluation. This may include blood tests to assess kidney function, electrolyte levels, and other relevant parameters. A urine analysis can also provide insights into your hydration status and kidney health.

- Mental Health Support: If you are struggling with eating disorders or psychological distress, seeking support from a mental health professional can be beneficial. Addressing these issues can improve your overall well-being and may help normalize your urinary patterns.

In conclusion, low urine output despite high water intake can result from various factors, including dehydration, kidney function, hormonal imbalances, dietary intake, and psychological issues. A thorough evaluation by a healthcare professional is essential to identify the underlying cause and develop an appropriate treatment plan.

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