Twenty-two months the baby will not speak may be caused by environmental factors, this is normal, but also may be the cause of disease, such as abnormal vocal apparatus, hearing impairment, congenital cerebral hypoplasia and other reasons, is not normal phenomenon. 1. Environmental factors: twenty-two months baby will not speak may be environmental factors, mother and father usually rarely communicate with the baby, the baby lack of language exercise environment, may lead to the baby to speak late, the body does not have other organic lesions, this situation is normal. 2. Vocalization abnormalities: children need lips, teeth, tongue, throat, vocal cords, tongue tie and a series of organs involved in speech and pronunciation, the child’s tongue or tongue tie problems, may affect the child’s pronunciation, showing twenty-two months will not speak, which is not normal performance. 3. Hearing impairment: Hearing is the first barrier to speech perception. When hearing impairment cannot conduct sound correctly, there may be different degrees of speech expression problems, which is not normal. 4. congenital cerebral insufficiency: the baby twenty-two months is the peak of intellectual development, language development, will not speak to consider the possibility of congenital cerebral insufficiency, go to the hospital to do the appropriate neurological examination, do the cranial nuclear magnetic to understand the cause of this situation is not normal. Twenty-two months of the baby will not speak more reasons, the specific circumstances to go to the hospital through the examination to determine.