Butterfly swimmer is a special gesture or action, which is considered as a self-regulation way for autistic children when they face anxiety, anxiety or stimulation. Autism is a neurodevelopmental disorder, which affects patients' social and communication skills.
Children with autism often overreact to external stimuli or lack appropriate responses, which may lead to anxiety and anxiety. In these cases, people will seek a way to relieve their stress and tension, and the butterfly hand becomes a self-regulating gesture.