Bladder wall thickening (BWT) usually happens when there are other bladder issues like cystitis, bladder outlet obstruction, or bladder cancer. Signs include trouble urinating, cloudy or bloody urine, ...

The bladder is a muscular sac located in the pelvis that stores urine until it is excreted from the body through the urethra. Urine produced in the kidneys flows into the bladder via the ureters.