Frequent Urination: Is It Normal or a Sign of Diabetes? - Urology

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Frequent urination issues?


Hello Doctor, I would like to ask about my situation.
Since high school, I have been on the school sports team and have been exercising a lot, so I drink a considerable amount of water daily, approximately 3500 to 4000 cc.
Is this excessive? Recently, I have noticed an increase in my urination frequency, about 8 to 10 times a day, but I do not wake up at night to urinate.
Each time I urinate, the volume is substantial, and the color is generally a normal light yellow or close to clear.
Is this considered normal? Additionally, I had blood tests for other conditions that showed a fasting blood glucose level of 106, which is slightly elevated.
This concerns me because I have a good appetite, drink a lot of water, and urinate frequently.
Could this indicate diabetes? However, I have not experienced any weight loss.
My height is 177 cm and my weight is 76 kg.
Thank you for your response, Doctor.

Ellis, 20~29 year old female. Ask Date: 2016/10/23

Dr. Sun Hongshun reply Urology


Hello, it seems that your urine output is a bit excessive.
The normal fasting blood glucose level is below 100 mg/dL.
I recommend that you consult a family medicine or internal medicine clinic for further evaluation and testing.
Wishing you good health.

Reply Date: 2016/10/23

More Info


Frequent urination can be a concerning symptom, especially when combined with other factors such as increased thirst, changes in appetite, or unexplained weight loss. In your case, you mentioned that you have been drinking a significant amount of water daily—around 3,500 to 4,000 cc—and that you are urinating about eight to ten times a day. While this may seem high, it is important to consider several factors to determine if it is normal or indicative of a medical condition such as diabetes.

Firstly, the amount of fluid intake you described is quite substantial. For most adults, a daily fluid intake of about 2 to 3 liters is generally recommended, depending on factors such as activity level, climate, and individual health needs. If you are engaging in regular physical activity as part of a sports team, your increased fluid intake may be necessary to stay hydrated. However, consistently drinking more than 4 liters of water daily could lead to a condition known as polyuria, which is characterized by excessive urination.

Regarding the frequency of urination, it is important to note that normal urination frequency can vary widely among individuals. Generally, urinating between six to eight times a day is considered normal for most people. Since you are not waking up at night to urinate and your urine color is mostly light yellow or clear, this suggests that your kidneys are functioning well in terms of concentrating urine. However, the increased frequency could still warrant further investigation, especially in light of your slightly elevated fasting blood sugar level of 106 mg/dL.

A fasting blood sugar level of 100 to 125 mg/dL is classified as "prediabetes," which means you are at an increased risk for developing type 2 diabetes. While your current symptoms of frequent urination and increased thirst could be early signs of diabetes, they are not definitive on their own. Other common symptoms of diabetes include increased hunger, fatigue, blurred vision, and unexplained weight loss. Since you mentioned that your weight has remained stable, this is a positive sign.

To further assess your risk for diabetes, it is advisable to monitor your blood sugar levels more closely. A fasting blood sugar level of 126 mg/dL or higher on two separate tests is typically used to diagnose diabetes. Additionally, a hemoglobin A1c test can provide a broader view of your blood sugar control over the past two to three months. If you have not already done so, consider discussing these tests with your healthcare provider.

In summary, while your fluid intake and urination frequency may be influenced by your activity level, the elevated fasting blood sugar level is a concern that should not be overlooked. It is essential to consult with your healthcare provider for a comprehensive evaluation, which may include additional blood tests and possibly a referral to a specialist if necessary. Early detection and management of any potential issues can significantly improve health outcomes, so addressing your concerns proactively is crucial.

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