To know if you have autism, consider whether you experience signs such as difficulties with social communication and interaction, repetitive behaviors, strong preferences for routines, and sensory sensitivities. Some common indicators include little or no eye contact, limited or delayed speech, repetitive movements or speech, difficulty understanding others' feelings, and intense reactions to sensory stimuli like sounds, lights, or textures. Autism signs can appear at different ages and vary widely among individuals. If these signs resonate, the next step is to speak with a healthcare professional for an autism assessment. Diagnosis involves observing your communication, behavior, development, and emotional regulation, often through a comprehensive evaluation by a team of specialists. There is no simple medical test for autism; diagnosis is based on behavioral criteria and clinical judgment. You can also consider self-assessment tools like the AQ10 questionnaire to help indicate whether you might have autism, but professional diagnosis is necessary for confirmation. If concerned, consult a doctor who can refer you to specialists for further evaluation and support.