Low-grade fever of tuberculosis usually goes away after one to two weeks of regular anti-tuberculosis treatment, and it is recommended to follow the doctor’s instructions to avoid recurrent episodes of low-grade fever. Patients with tuberculosis may show symptoms of low-grade fever. After diagnosis, patients need to go to the hospital in time for treatment, and can receive isoniazid, rifampicin, pyrazinamide and other drugs. Most patients will have their fever reduced within two weeks of treatment. TB patients also need to maintain healthy work and rest habits during treatment, reasonable diet, and appropriate exercise, which will help strengthen the resistance and relieve the symptoms of low fever at an early date. Low-grade fever of tuberculosis usually goes away in one to two weeks. If the low-grade fever does not go away for a long time, it is recommended to change the medication under the guidance of the doctor.