一位年轻的妈妈领着她那蹦蹦跳跳的儿子走进儿科诊室,她指着孩子的脸说:“大夫,您看,我家宝宝脸上有许多蛔虫斑,可是吃了好几次驱虫药也没打下一条蛔虫,这是怎么回事?”医生仔细看了孩子的脸,然后说:“这并不是蛔虫斑,单靠这样的‘虫斑’来诊断孩子是否有蛔虫是没有科学根据的。” A young mother leads her bouncing son into the pediatric clinic. She points to the child’s face and says, “Doctor, you see, there are many roundworm spots on my baby’s face, but I have eaten several times. Did not lay a roundworm, how is this going? ”The doctor looked carefully at the child’s face, and then said:“ This is not a roundworm, just rely on such ’bug’ to diagnose whether the child has roundworms is not scientifically based ”