Tuberculosis patients taking medication for 7 months may still develop bone tuberculosis, but the general chance is low, often related to the formation of tuberculosis drug-resistant bacteria, or the patient himself has diabetes, autoimmune diseases, due to the treatment of these diseases, immunosuppression, resulting in tuberculosis recurrence. Tuberculosis is a destructive lesion caused by tuberculosis bacilli invading the skeletal system, mostly secondary to pulmonary tuberculosis, and a few secondary to digestive tract tuberculosis, with insidious symptoms and slow onset. If tuberculosis patients take anti-tuberculosis drugs for 7 months and still have the activity of Mycobacterium tuberculosis, it may cause bone tuberculosis, but in most cases, the condition of tuberculosis patients can be controlled after taking anti-tuberculosis drugs for 7 months, and the possibility of secondary bone tuberculosis is low. The onset of bone tuberculosis patients may be manifested as night sweats, low-grade fever, as well as local pain and swelling, dysfunction, etc. If you are worried about secondary bone tuberculosis, you can improve the relevant examinations under the guidance of the doctor, to clarify the diagnosis and active treatment.