一、婴儿长期无进食要求、喂奶困难或者吸吮无力,易吐奶(排除消化系统和其它疾患)。二、总是处于睡眠状态或易激惹、好动者。三、异常安静,对周围环境无兴趣,对声、光等刺激反应性差,防御功能也差。从刺激到哭的时间相对延长,反复强刺激才哭,哭声尖、直,无变化。四、面部表情呆板,眼球转动不灵活,不会看人,一个月仍不会微笑,尤其不会对妈妈笑,对周围刺激无相应地发声或表情。五、头围及囟门异常,两 First, the baby long-term absence of food requirements, difficulty feeding or sucking weak, easy to spit milk (excluding digestive system and other diseases). Second, always in sleep or irritability, activists. Third, unusually quiet, no interest in the surrounding environment, the response to the sound, light and other poor response, the defense function is poor. From stimulation to crying time is relatively extended, repeated strong stimulation before crying, crying sharp, straight, no change. Fourth, facial expressions dull, eye rotation is not flexible, will not look at people, a month will not smile, especially not to mom, the surrounding stimulus no corresponding voice or expression. Fifth, head circumference and the fontanelle anomaly, two