<s>[INST] Hi this Pushparghya writing in from India. According to IST, it is night, but still Good evening!!!Hope u r also doing great. Since last 3 days, my brother son was suffering from acute pain in abdomen. He is 8 yrs old.After USG, report says that the liver has enlarge tendency. But he is too young and he does not take any outside food. What should be the cause and how that can be taken care of??? [/INST] Liver enlargement can be due to many reasons, but the most likely reason is infective jaundice due to water or food contamination with hepatitis virus A. Please take him to his physician and request him to order blood tests to check bilirubin, liver enzymes etc. The ultrasound has already shown an enlarged liver, but now we need to confirm the cause of this enlargement. Treatment will depend on the cause. </s>