တဂ်- ဆီးလမ်းကြောင်းဆေးခန်း

Residual Urine: What the Number Means, and What It Cannot Tell You

A scan after you have emptied your bladder, measuring what is left. Useful — but it varies hugely between visits, a single reading should not decide anything, and it never explains why the bladder is not emptying.