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在临床工作中,经常遇到小儿患发烧疾病时,伴有出血点出现,化验血小板和出、凝血时间往往正常,出血点随原发疾病的好转,体温下降而消失。首先要考虑感染,如上呼吸道感染、流行性感冒、肺炎、腮腺炎等发热性疾病,由于病毒所产生的毒素都可直接损害微血管,使血管壁内皮间隙脆弱破裂,血液溢出。细菌感染可在微血管内形成栓塞,管壁坏死,导致红血球渗入周围组织。临床约有60％的出血点是由感染引起的。其次有些药物,如碘化物、青
In clinical work, often encountered in children with fever disease, accompanied by bleeding, laboratory tests of platelets and out, clotting time is often normal, the bleeding point with the improvement of primary disease, body temperature dropped and disappeared. First consider the infection, such as upper respiratory tract infection, influenza, pneumonia, mumps and other febrile diseases, because the virus toxin can directly damage the microvascular, so that the vascular wall endothelial cell gap fragile, blood spills. Bacterial infections can form emboli in the capillaries, necrosis of the walls, leading to red blood cells into the surrounding tissue. About 60% of clinically bleeding sites are caused by infection. Second, some drugs, such as iodide, blue