Untreated autism can lead to significant long-term challenges in social, emotional, and cognitive development. Without early intervention, individuals may experience difficulties in communication, social interaction, and adapting to daily life. This can result in social isolation, behavioral issues, and emotional distress, affecting relationships and academic or professional success. Additionally, untreated autism may lead to anxiety, depression, or other mental health issues due to unmet needs and the inability to cope with overwhelming environments. Delayed support can also impact the development of essential life skills, limiting independence and quality of life in adulthood. Early intervention improves outcomes significantly.