Depends if SP or not. Urethral can erode urethra and then leak. Could then stuck with leaks when it is out. SP is better for long term use. SP also provides another way out to pass stones, etc. SP is easier to keep clean.

May be better alternatives to indwelling catheters which still need drugs to keep bladder settled.

With SCI dyssynergia often necessitates the use of catheters. (Barrington's nucleus not talking to Onuf's nucleus.)