Mild coarsening of the hepatic echotexture is noted. no focal hepatic abnormality is seen. 153cm 100lbs, lab test liver function normal and no hepatitis b or c, no alcohol and low carbs diet. what possible problems about the ultra sound finding?

Ultrasound is not very precise all the time- sp with no symptoms and normal labs- for it s also operator driven . Ask your doc if you need additional testing such as CT which is more precise

These findings appear to be very minimal and it sounds as though your liver is in pretty good shape. If the liver tests ever become abnormal or any new problems develop, further imaging could be performed, but based on what you have suggested here, it is likely not necessary. Good luck.