Are there different grading scales for inflammation?
yes it is a good thing as far as the minimal liver damage (stage 1) at this time but the grade 4 means that you have the worse inflamation going on (scale is from stage 1-4, with stage 4 being the worse) and this means your liver is being hit hard. i would consider treating ASAP or at least take supplements to get the inflamation down. best of luck