<s>[INST] My mom has been getting mild fever after physical work for almost 1 year in 2012 and was later diagnosed TB in August 2013. Although the course was of 6 months but doctor suggested to continue(as he said its better to continue for few months more to stop it completely) She is continuing the TB medicine until now but now she started getting fever again. In the last 10 days her fever has reached high grades upto 99-101 F. What could be the reasons for this and how should we proceed further? Please help us and you can write me YYYY@YYYY Thanks for your help Nikhil [/INST] Hellos you stated in the query that your mother took complete anti-tubercular treatment more than required. She stopped that treatment and after this still, she is having a fever 99-101 F. Such type of fever may be due to these reasons, these include:1 Anemia, as this is the most common cause after the treatment, so get in blood examination for hemoglobin level.2 Failure of treatment, diagnosis can be confirmed by X-ray chest and note down if fresh lesion (cavities) present or not present.Sometimes due to resistant bacilli, patient don't respond to treatment. Also get in blood examination for C B C and E S R (if very high i.e. 100 mm of 1st hour, highly suggestive of chronic infection or failure of treatment.3 Typhoid fever also, if untreated may develop such type of fever, so get in blood examination for Tidal test, as well serology test. However, there are so many other possibilities of such fever, like cancer, jaundice, but I recommend you, please consult another physician and get his 2nd opinion. Good luck. </s>