Sweet-smelling urine over a long period despite normal blood glucose levels
In general, if urine has a sweet odor over a long period while blood glucose levels remain normal, it may be caused by factors such as diet, prolonged fasting, or renal tubular lesions. Treatment should be based on identifying the underlying cause. Specific analyses are as follows:
1. Diet
If a patient consumes excessive amounts of sugary foods or glucose water, excess sugar in the gastrointestinal tract may be excreted through urine, leading to elevated sugar content in the urine and a sweet smell. If there are no obvious discomfort symptoms, this is usually considered a normal phenomenon, and symptoms can be relieved by avoiding foods high in sugar.
2. Prolonged fasting
If a patient remains in a state of prolonged hunger, their body's absorption function may decline. Suddenly eating food may result in the body being unable to absorb sugars effectively, causing excess sugar to be excreted in the urine, resulting in a sweet odor.
3. Renal tubular lesions
Renal tubular lesions can cause kidney damage and mesangial cell injury, allowing glucose from the kidneys to leak into the urine through damaged areas. If this occurs, prompt medical attention is necessary, as it may indicate conditions such as chronic nephritis or nephrotic syndrome.
Patients should determine the specific cause based on their individual circumstances. If the cause cannot be identified, they should seek timely medical evaluation and appropriate treatment to prevent delayed diagnosis and worsening of the condition.