What are the signs of autism in children?

The main manifestations of autism in children include the following aspects: 1. Social interaction impairments: Children lack emotional connections with others, have difficulty making eye contact, smiling, or using body gestures for nonverbal communication, and show limited responsiveness to others' feelings and emotions. 2. Communication difficulties: They experience challenges in language development, which may include delayed speech, slow language acquisition, unclear verbal expression, and a lack of nonverbal communication skills. 3. Restricted interests and repetitive behaviors: They display intense interest in specific objects or activities while showing little interest in others. They often exhibit stereotyped behavior patterns, such as repetitive movements or lining up objects. 4. Sensory abnormalities: They may have strong reactions to certain sounds, colors, foods, or lights, while showing reduced sensitivity to temperature, pain, or other physical stimuli. 5. Developmental delays: Approximately 70% of children with autism show delayed intellectual development or have an IQ below 70, with uneven development across various abilities.