Passing Excess Urine in Men with Diabetes: Understanding the Real Cause
Patient's Query
I have diabetes and for the last few months I am waking up multiple times at night to pass urine. Sometimes I feel I cannot hold urine for long, and a few drops leak before I reach the toilet.
My family says this is because my sugar is high and I am passing more urine. But I am worried whether this is urinary incontinence. I am confused.
How do I know whether this is just diabetes-related polyuria or an actual bladder problem? Do diabetic patients commonly get urinary incontinence?
Endocrinologist Answers

Polyuria means passing large volumes of urine, usually because blood sugar is high.
Typical clues of polyuria
Urine volume is large each time
Happens day and night
Strongly linked to high sugars or high HbA1c
Improves when sugars come under control
No leakage while coughing or walking
No dribbling or wet clothes
This happens because excess glucose pulls water into urine.
In OPD, when sugars are uncontrolled, polyuria is the most common cause of nocturia.
What is urinary incontinence
Urinary incontinence means loss of bladder control, not excess urine production.
In diabetes, this can happen due to:
Diabetic autonomic neuropathy
Overactive bladder
Prostate-related bladder outlet issues
Long-standing diabetes affecting bladder sensation
How diabetic urinary incontinence presents
1) Urgency incontinence
Sudden urge to urinate
Cannot hold urine
Leakage before reaching toilet
Urine volume may be small
Worse at night even if sugars are normal
This is often due to diabetic bladder dysfunction, not sugar spill.
2) Overflow incontinence
Continuous dribbling
Weak urinary stream
Feeling of incomplete emptying
-
More common in:
Long-standing diabetes
Diabetic autonomic neuropathy
Enlarged prostate
Here, the bladder is overfilled but does not empty properly.
Key OPD differentiating points
|
Feature |
Polyuria (high sugar) |
Diabetic incontinence |
|---|---|---|
Urine volume |
Large |
Small or dribbling |
Sugar control |
Poor |
May be normal |
Urgency |
No |
Yes |
Leakage |
No |
Yes |
Night symptoms |
Yes |
Yes |
Improves with sugar control |
Yes |
Often no |
This table alone solves confusion in most OPDs.
Why diabetes increases bladder problems
Long-standing diabetes can damage:
Bladder sensation
Detrusor muscle contraction
Autonomic nerves controlling voiding
This is called diabetic cystopathy.
Patients may not feel bladder fullness until it is too late, leading to urgency or leakage.
What we do in OPD evaluation
For a diabetic patient with urinary symptoms, we usually check:
Sugar control and HbA1c
Urine routine to rule out infection
Post-void residual if emptying problem suspected
Prostate assessment in men
Advanced tests are not needed initially.
When to worry and refer
Continuous dribbling.
Recurrent UTIs.
Weak stream with leakage.
Sudden onset bladder symptoms with leg weakness.
Long-standing diabetes with new urinary retention.
These need further evaluation.
Take-home message for diabetic patients
Not every frequent urination is due to high sugar. And not every urinary leak is diabetes worsening.
Polyuria improves with sugar control. Diabetic bladder problems need separate evaluation.
Early identification prevents kidney damage, infections, and quality-of-life issues.
References:
Disclaimer: The information provided in this Q&A is for educational purposes only and should not be considered as medical advice. Always consult with a qualified healthcare professional for personalized medical guidance and treatment recommendations.