Nocturnal polyuria in the elderly is associated with hypertension: this is consistent with studies in younger age groups that show that essential hypertension is associated with nocturia and with increased night/day ratios for sodium excretion.

Can hypertension cause frequent urination?

A new study conducted in Japan found that the need to urinate in the night, called nocturia, may be linked to hypertension and high salt intake. Share on Pinterest Frequently going to the toilet at night may be a sign of high blood pressure, according to a new study.

Is polyuria a symptom of hypertension?

Therefore, hypertension may be one factor contributing to nocturnal polyuria. Hypertension during the day would increase renal arterial resistance and decrease renal blood flow, leading to insufficient daytime urine production.