Can the wide part of the catheter be inserted in the urethra?
Yes, it can. The transition from the narrow part of the catheter to the slightly wider part of the catheter is not a stop sign. A man’s urethra is 15 to 30 cm long. Depending on the length of your urethra you might need to insert the wider part of the catheter as well before the urine starts to flow. This will not harm the urethra as it is flexible and has a larger diameter than the wide part of the catheter. The widest part of the SpeediCath Control catheter is catheter size 16. At the tip of the penis, the diameter of the urethra is approximately 6-7 mm wide, corresponding to catheter size 18 to 21.