If the UDT shows that spinal shock is still present in supraspinal lesions, a new test can be scheduled 6 weeks to 2 months later. The UDT can be repeated if the first test is inconclusive, outcome of urological management not successful (refractory incontinence, complications, retention), or even as a routine evaluation after 4–6 months. If treatment has been started or changed, a control UDT, to evaluate the treatment effect, can be scheduled some weeks later, when the effect of the changes would probably be visible.