Hello.

Thank you for your query at DoctorSpring.com.

I understand your concern.

The chances of culture turning out to be positive depends on the specific clinical diagnosis, previous culture results as well as the treatment given.

In a case of successfully treated Pulmonary Tuberculosis, sputum culture would be negative after completion of the anti-tubercular treatment.
However, if the infection was not eliminated either due to inadequate treatment or non-adherence to the treatment regimen, Tuberculosis can relapse, and culture can be positive in such cases.

In order to give my best opinion, I would need more details like:
-what type of tuberculosis was diagnosed before starting treatment,
-the exact treatment taken and whether it was taken regularly,
-results of sputum culture, two months after start of anti-TB medication and if that was positive, those repeated later,
-whether HIV negative or positive,
-and why was this sputum culture sent for now.

Please reply to the above as a follow-up and feel free to ask queries.

Kind regards.