Urinary casts

Hyaline casts; Granular casts; Renal tubular epithelial casts; Waxy casts; Casts in the urine; Fatty casts; Red blood cell casts; White blood cell casts

Urinary casts are tiny tube-shaped particles that can be found when urine is examined under the microscope during a test called urinalysis.

Urinary casts may be made up of white blood cells, red blood cells, kidney cells, or substances such as protein or fat. The content of a cast can help tell your health care provider whether your kidney is healthy or abnormal.

Male urinary system

The urinary system is made up of the kidneys, ureters, urethra and bladder.

How the Test is Performed

How to Prepare for the Test

How the Test will Feel

Why the Test is Performed

Normal Results

What Abnormal Results Mean

Risks