Cancer grading systems

Cancer grading systems evaluate how abnormal or aggressive cancer cells appear under a microscope, helping predict how quickly the cancer may grow and spread. Grades typically range from low to high (e.g., Grade 1 to 3 or 4), with lower grades indicating cells that look more like normal tissue and tend to grow more slowly. Higher grades show more abnormal, less differentiated cells, often associated with a more aggressive cancer. Grading helps doctors decide on the best treatment approach and provides insight into prognosis. It’s an important part of understanding the nature of the cancer beyond just its location or size.