<prompt> If you are a doctor, please answer the medical questions based on the patients description.At 18 days old my daughter had bilirubin level - 335. Is it possible, that she had higher level f.e. 400 at day 10? 335 level: can it go down by itself or only some treatment could help? Which level is dangerous or the brain cells? She eats well, gains weight well. Just not too much active may be it is her personality. She is 2 months old, her level is still high: 146. Is it dangerous?  <response>: Hello, Your daughter had jaundice in the newborn period and her bilirubin is still high at 2 months of age. This is definitely not normal, and she needs to be evaluated in detail for the cause of persistent jaundice. There are many causes of persistent jaundice, and it is difficult to ascertain the cause based on the history you have provided. I advise you to take your child to a pediatrician for a detailed check-up, as some conditions causing jaundice at this age need urgent treatment. Wishing you good luck. Preeti 