The precursors of osteomyelitis getting better include changes such as disappearance of local symptoms, disappearance of systemic symptoms, and improvement of imaging manifestations and blood tests. 1. Disappearance of local symptoms: disappearance of local pain, swelling and fever on the skin surface of patients with osteomyelitis, and if there is drainage before, and the drainage fluid is changed to clear and no pus or dead bone comes out, it indicates that osteomyelitis is getting better. 2. The disappearance of systemic symptoms: the disappearance of symptoms such as shortness of breath, shortness of breath and rapid pulse in patients with osteomyelitis indicates that osteomyelitis has improved. Generalized weakness improves and appetite increases. Body temperature drops to within the normal range. 3. Changes in imaging performance: Osteomyelitis patients’ imaging performance has dead bone generation and mass generation, which is relieved after treatment, which also suggests that osteomyelitis treatment is effective and gradually improves. 4. Improvement of blood test: routine blood test is normal, white blood cells return to normal. Blood sedimentation gradually decreases to the normal range. In addition to the above, the improvement of osteomyelitis can also be referred to other test results to make a comprehensive judgment. It is recommended that the patient go to the hospital in time to clarify whether the disease has improved or not.