Acute osteomyelitis symptoms are mainly characterized by fever and chills. Chronic osteomyelitis usually presents with symptoms such as skin pigmentation and pus. Osteomyelitis is mostly an inflammatory disease due to destruction of bone caused by bacterial infection, which may or may not be accompanied by secondary osteomalacia. In the case of acute osteomyelitis, the patient mainly manifests systemic symptoms such as fever, chills, fatigue, and lethargy. Local symptoms such as redness, swelling and pain at the lesion site will also occur. Chronic osteomyelitis is mostly due to poor healing of acute osteomyelitis, and is usually characterized by local symptoms. Patients mainly manifested as localized lesions of skin pigmentation, repeated pus outflow, intermittent bone pain and other symptoms. Some patients with serious conditions may even have dead bones and limb deformation. For patients with osteomyelitis, it is recommended to go to regular hospitals in time, conduct relevant examinations under the guidance of doctors and standardize treatment.