What is the term for frequent urination at night?

The term for frequent urination at night is nocturia. Nocturia specifically refers to the need to wake up during the night to urinate, which can disrupt sleep and lead to various health concerns. This condition can be caused by several factors, including fluid intake before bedtime, medications, or underlying health issues such as diabetes or urinary tract infections.

Polyuria refers to the production of an abnormally large volume of urine, which is not limited to nighttime and can occur at any time during the day or night. Oliguria, on the other hand, is a term used for decreased urine output, which does not relate to the frequency of urination. Dysuria describes painful or difficult urination, focusing on discomfort rather than frequency. Therefore, nocturia is the most accurate term for the situation described.