There are a few different reasons why a child with autism might put objects in their mouth. One reason could be that the child is using their mouth to explore the texture, shape, or taste of the object. Children with autism may be more sensitive to certain textures or sensations, and they may find comfort in exploring these through oral input.

Another reason could be that the child is using the object as a way to self-soothe or regulate their emotions. Some children with autism may have difficulty with self-regulation and may turn to oral input as a way to cope with overwhelming stimuli or emotions.

It is important to note that not all children with autism engage in this behavior, and the frequency and intensity can vary significantly from child to child. Some children may only do this occasionally, while others may do it more frequently. It can be helpful to observe the child and try to identify any patterns or triggers that may be associated with the behavior.

If you are concerned about your child’s behavior, it is always best to consult with a medical or mental health professional. They can help you understand the underlying causes of the behavior and develop strategies to support your child’s development and well-being.