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Urinary retention (spinal cord compression or trauma)
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Loss of awareness of bladder distension (damage to the frontal lobe as in frontal tumors, bifrontal subdural haematomas)
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Frequency, urgency and urge incontinence (damage to the pons or spinal cord resulting in an upper motor neuron lesion)
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Overflow incontinence (damage to the pudendal nerve leading to flaccid paralysis of the detrusor muscle of the bladder, resulting in a lower motor neurone lesion)