这个词是什么意思？
Symptom of overactive detrusor muscle of the URINARY BLADDER that contracts with abnormally high frequency and urgency. Overactive bladder is characterized by the frequent feeling of needing to urinate during the day, during the night, or both. URINARY INCONTINENCE may or may not be present.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D053201 · MeSH 2026。
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