Cancer grades often fall into three or four categories:
Grade 1 (Low Grade): These cells look slightly abnormal and are usually slow-growing. Grade 2 (Intermediate Grade): These cells look more abnormal and grow somewhat faster. Grade 3 (High Grade): These cells look very abnormal and tend to grow and spread more quickly. Grade 4 (Very High Grade): In some grading systems, this represents the most abnormal and aggressive cancer cells.
