嗜异症又称异食癖,是指对通常不作为食物的异物(如煤渣、泥土、墙泥、头发、指甲、砂石、肥皂、油漆等),有意识地挑选,难以控制地咀嚼和吞食的临床表现。以幼儿为多见,但也可见于成人。本症的描述,散见于中医古籍虫积、疳症等。如钱乙《小儿药证直诀》:“脾疳,体黄腹大,食泥土,当补脾,益黄散主之。”沈金鳌《幼科释谜》云:“爱吃生米面、炭、砖瓦,是脾胃疳。”龚廷贤《寿世保元》:“好食生米或好食壁泥,或食茶、炭、咸、辣等物者是虫积。”1岁以内儿童尚不能主动选择食物,咬食异物者则不属于本症范畴。本症发生的原因,主要是素禀不足、饮食失节、虫积所致,亦可因脾胃虚弱、胃肠湿热所致。由儿时家庭环境不 Hemophilia, also known as pica, refers to the conscious selection, unmanageable chewing and devouring of foreign objects (such as cinders, earth, wall mud, hair, nails, sand, soap, paint, etc.) that are not normally used as food The clinical manifestations. Toddler is more common, but also seen in adults. The description of this disease, scattered in ancient Chinese medicine insect product, hysteria and so on. Such as money B “pediatric medicine card straight tactic”: “spleen, body yellow belly, soil, when the spleen, Yi Huang Sanzhu the main.” “Shen Jin Ao” Pediatrics mystery “cloud: ” love to eat Health rice noodles, charcoal, brick, is the spleen and stomach. “Gong Tingxian” Shou Shi Bao Yuan “: ” Good food raw rice or good wall slime, or tea, charcoal, salty, spicy and other objects are insect plot. "Children less than one year old can not take the initiative to choose food, those who bite the foreign body does not belong to the disease category. The cause of this disease, mainly due to lack of prime, diet disorders, insects caused by the spleen and stomach may also be due to gastrointestinal dampness caused. By childhood the family environment is not