I am a young, female quadriplegic who uses a Foley in-dwelling catheter to drain my bladder. I have no movement or sensation below my chin. Although I drink more than seven litres of water daily, I have frequent problems with my catheter not draining properly, which causes me to experience autonomic dysrefexia quite severely until the catheter is changed. This problem is becoming truly detrimental to my health. I have tried many solutions: cranberry juice, a pure silicone catheter, and the drug ditripan, but little has helped. I have cystocopies once a year to remove small bladder stones. I do not have a bladder infection now and rarely do get one. My urologist has run out of suggestions. I would truly appreciate any advice that anyone out there might have. Thank you!