I just read an article that is very comprehensive on the subject of catheterizing the bladder. It really does cover the topic in a lot of depth, but in easy-to-understand language. The article starts out defining what it means to catheterize a bladder, and under what conditions it should be undertaken. One point to emphasize is that since urinary tract infections (UTIs) are the cause of huge medical expense due to added complications, morbidity (tissue death) and mortality (patient death), and since catheters – especially longer-term indwelling catheters are a major cause of UTIs, the best prevention for UTIs is NOT to insert a catheter in the first place.
The article then goes on to explain the different types of catheter insertion locations (urethral and suprapubic), advantages and disadvantages of each, and continues with the differences between males and females, types of catheters, etc.
It is an excellent overview of urinary catheters and everything you should know about them.
Read the full article here: https://www.patient.co.uk/doctor/catheterising-bladders