Two years old and still can not speak is not normal, may be due to parents and the baby less communication, neurological diseases, autism, hearing abnormalities and other reasons, it is recommended to timely visit the hospital to find out the cause of the disease. 1. Parents and babies communicate less: because parents usually communicate less with the baby, so the baby will not speak. 2. Neurological diseases: If the inability to speak is accompanied by abnormal actions, it may be a neurological disease or a genetic metabolic disease, which should be promptly treated in the hospital. 3. Autism: If the baby does not speak and at the same time does not play with other babies, has very little attachment to the parents and seldom communicates with others, he or she may be autistic and should go to the hospital in time for evaluation. 4. Hearing abnormality: If the baby’s response to sound is very weak, there may be a hearing abnormality, and need to go to the ear, nose and throat department for examination. If your baby is two years old and can’t speak, parents should seek timely medical attention and actively cooperate with the doctor to identify the cause of the disease, so as to avoid delaying the condition or triggering adverse reactions.