Nocturia means waking at night to pass urine. Once a night can be normal for many adults—especially with evening drinks—but waking two or more times often affects sleep, energy, and fall risk.
- Common contributors include late fluids, salt-related swelling that “drains” overnight, diabetes, sleep apnea, prostate enlargement (BPH), overactive bladder, and some medicines.
- Good news: small habit shifts and timing changes help many people within 1–2 weeks.