hi. noted history of enlarged liver, bacteria and blood in your urine and abdominal and back pain. it is possible that you have a hepatomegaly (enlarged liver) secondary to a fatty liver and or infective causes. are you experiencing any other symptom like abdominal pain, nausea, vomiting, jaundice? if none, observation and regular follow-up re your hepatomegaly is advised. low fat diet is recommended. with regards to bacteria and blood in your urine associated with abdominal and low back pain, it is best if you consult with a doctor first, preferably a urologist, for complete physical examination and clinical evaluation. it is possible that you have a urinary tract infection. but, kidney or urinary tract stones must also be ruled-out, as this could also cause your presenting signs and symptoms. diagnostics (such as ultrasound of the abdomen and KUB) and management (medical and/or surgical if indications are found) will be directed accordingly. if there is indeed a stone somewhere along you urinary tract, low salt diet is also recommended. hope this helps. good day!! ~dr.kaye