hi before I tell you the causes of increased bilirubin in the blood let me explain the what the bilirubin is. the bilirubin is the yellow coloured pigment that the liver produces due to the red blood cells destrtoyed and recycled so it is the by product of break down of hemoglobin . the causes for increased bilirubin in the blood due to sickle cell anaemia, allergic reaction due to blood transfusion, liver diseases like acute and chronic hepatitis, cirrhosis of liver, liver damage, obstruction in the gall bladder, hemodialysis, side effects of medications, pancreatic cancer. so to rule out the exact cause consult gastro enterologist for necessary investigation and for the treatments. herewith I am giving you few suggestions to improve your health condition like drink plenty of water take healthy and nutritious food chew the food properly before you swallow avoid non veg spicy foods, junk foods, alcohol, smoking. have soothing diet do regular exercise to keep your health fit. hope this answers your query. take care. get well soon.