There are several reasons why you may need to use an intermittent catheter, but fundamentally, if there is something affecting how the bladder sphincter or detrusor muscle (the bladder wall) functions, your body may need a little help to drain urine.
It is important to know, if you do not self-catheterize per the guidance from your doctor, you may find that you start to leak urine when your bladder becomes too full. Whether you're self-cathing forever or only for a certain amount of time, choosing not to self-catheterize means you're leaving urine in your bladder for a long period of time, which can lead to a distended bladder or a urinary tract infection. An untreated urinary tract infection can spread to the upper urinary tract becoming more difficult to treat and more likely to spread to your blood causing sepsis. Sepsis can be life-threatening. There may also be more complex challenges which require physician intervention.
Speak with your doctor to determine a self-catherization routine that best meets your needs and approach to cathing. This routine should include knowing on average, how many times a day you’ll need to self-cath and what products are right for you.