患儿男,27天,一胎一产,足月。生后哭声弱,吃奶少,双下肢活动受限。有窒息史。因发烧,皮肤黄染三天;精神萎靡、嗜睡、拒奶一天,于1986年5月27日入院。患儿母奶喂养,其母怀孕及分娩期间以泡饭、干菜为主食,很少吃蔬菜和水果。妊娠中期有牙龈出血史。父母非近亲婚配,否认冶游史。体检:T39℃、P160次、R76次,体重3 Children male, 27 days, one child a birth, term. Crying after birth, less milk, lower extremity activities limited. Have a history of suffocation. Due to fever, skin yellow dye three days; apathetic, lethargy, refused to milk one day, on May 27, 1986 admitted. Breastfeeding children with their mothers during pregnancy and childbirth to soak rice, dried vegetables for the staple food, eat less vegetables and fruits. Gingival bleeding in the second trimester of pregnancy history. Parents non-relatives marriage, denied the tour history. Physical examination: T39 ℃, P160 times, R76 times, weight 3