急性骨髓炎经抗生素治疗后,可以出现轻型及亚急性病例,对这些病例的诊断不应存在困难.但有一些病例初期并无急性症状,起病缓慢,疼痛不重,有时可自行缓解,一般无全身症状.入院前多未按感染处理而使用过抗生素,部分病例仅有的体征为局部肿胀压痛,有的来院时已有流脓窦道,白细胞计数及血沉均可正常。具有上述特征的病例的病例宜称为原发性亚急隆化脓性骨髓炎。近年来这些病例已逐步增多。临床上主要是一个鉴别诊断问题,因容易与骨肿瘤相混淆。本病好发部位与急性骨髓炎相似,但胫骨下端相对多见。脊柱骨髓亦较多表现为亚急性过程,故又应与脊柱结核作鉴别. Acute osteomyelitis after antibiotic treatment, there may be mild and subacute cases, the diagnosis of these cases should not be difficult, but there are some cases of early acute symptoms, slow onset, pain is not heavy, and sometimes relieve themselves, and generally No systemic symptoms and more than before the admission of antibiotics have not been treated by infection, in some cases the only signs of local swelling and tenderness, and some have come to the hospital purulent sinus, white blood cell count and ESR can be normal. Cases with the above characteristics should be referred to as primary sub-acute pyogenic osteomyelitis. These cases have gradually increased in recent years. Clinically, a differential diagnosis is mainly due to easy confusion with bone tumors. The site of the disease is similar to acute osteomyelitis, but the lower tibia is relatively common. Spinal bone marrow also showed more subacute process, it should be identified with the spinal tuberculosis.