Which symptom differentiates functional incontinence from other types?

Functional incontinence is primarily characterized by the inability to reach the bathroom in time due to underlying physical or cognitive impairments, rather than a direct issue with the bladder or urinary tract. This type of incontinence arises from factors such as mobility difficulties, cognitive decline, or environmental obstacles that prevent timely access to a restroom.

In contrast, the other symptoms mentioned are typically associated with different types of incontinence. Frequent urination is often a symptom of overactive bladder or other conditions affecting bladder function, while an urge to urinate is central to urge incontinence, where there is a sudden and intense need to urinate. Leakage during physical activity is characteristic of stress incontinence, which occurs due to pressure on the bladder during movement or exertion.

Therefore, the key differentiating symptom for functional incontinence is the impaired ability to reach the bathroom in a timely manner, which distinguishes it from other bladder-related issues that stem from different physiological reasons.