<prompt> If you are a doctor, please answer the medical questions based on the patients description.My son had Hep c and did the interferon, riboviran incivek treatment. he is now virus free post treatment 6 month blood work shows high levels of billirubin. is this as a result of the treatment or could he have developed Gilberts syndrome? neve had high levels while on treatment.  <response>: Hello! Thanks for putting your query in Chat Doctor. I am a Gastroenterologist DM. As post treatment viral load is not detected then there may be some other reason for increased bilirubin, it may be Gilbert syn Chat Doctor. So I will suggest you to take him to a hepatologist for evaluation. I hope I have answered your query and this will help you. If you have any further query I will be happy to answer that too. Remain in touch and get-well soon. 