Grading of Bladder Cancer

Once cancer has been diagnosed, the next step is to choose the best way to treat it. To help do this, your healthcare provider checks what the cancer cells look like under a microscope (the cancer grade).

Grade: What the cancer cells look like

The grade of bladder cancer is found by looking at cancer cells under a microscope. The grade is based on what the cancer cells look like and how many cells are multiplying. The higher the grade, the more uneven the cells are and the more cells are multiplying. High-grade cancers are more likely to grow and spread quickly. Knowing the grade can help your healthcare provider predict how fast the cancer will grow and spread.

Microscopic view of low-grade cancer cells.

Low grade

Low-grade (or well-differentiated) cells look relatively normal when compared to normal bladder cells. A few of the cells vary in size. Some of the cells are multiplying.

Microscopic view of high-grade cancer cells.

High grade

High-grade (or poorly differentiated) cells are very uneven in shape. They vary widely in size. A significant proportion of the cells are multiplying. They may also look heaped up and/or loose compared to the normal architecture of bladder cells.

Was this helpful?

Yes No

Tell us more.

Check all that apply.

Last question: How confident are you filling out medical forms by yourself?

Not at all A little Somewhat Quite a bit Extremely

Thank You!

© 2000-2017 The StayWell Company, LLC. 780 Township Line Road, Yardley, PA 19067. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.