Slurred speech is usually caused by lack of training, cleft lip and palate, and short tongue tie, which can be improved by imitation training, cleft lip and palate repair surgery, tongue tie lengthening surgery, etc. The details are as follows. 1. Imitation training: some young children may have slurred speech in the process of learning to speak, if it is determined that it is not caused by pathological reasons, then it can be improved by imitating the training of adults. 2. Cleft Lip and Palate Repair: If a child has a cleft lip or cleft palate, which usually affects articulation, a cleft lip and palate repair is needed. After the integrity of the organ is repaired, the lisp will be relieved. 3. Tongue tie lengthening: A short tongue tie can also lead to slurred speech. Tongue tie lengthening can increase the flexibility of the tongue, which will result in clearer articulation. If the lisp is serious or accompanied by other symptoms, it is recommended to go to the hospital in time.