Warning signs to watch for
You should consider medical evaluation if nocturia is accompanied by:
Burning or pain during urination
Blood in the urine
Sudden increase in nighttime bathroom visits
Anatomy
Excessive thirst
Unexplained weight loss
Swelling in the ankles or legs
Chest discomfort or shortness of breath
In diabetes, for example, excess sugar in the blood pulls more water into the urine, increasing nighttime urination and thirst. In heart conditions, fluid may shift back into circulation when lying down, leading to increased urine production at night.
