What is the term for urination during the night, especially in excess?

The term that describes urination that occurs during the night, particularly when it is in excess, is nocturia. This condition is characterized by the need to awaken during the night to urinate, which can disrupt sleep and may indicate underlying health issues such as diabetes, heart failure, or urinary tract infections. Recognizing nocturia is important for diagnosis and management, as it often affects the quality of life for individuals experiencing it.

The other terms listed relate to different conditions: oliguria refers to low urine output, cystitis is an inflammation of the bladder which can cause urinary symptoms, and pyuria indicates the presence of pus in the urine typically related to infection. Understanding these distinctions is crucial for accurate coding and patient care.