Autism is a developmental disorder diagnosed before age 4 that affects social skills, communication, and behavior. It is caused by abnormal brain development and chemistry. While its exact causes are unknown, genetics may play a role. Autism cannot be cured but therapies like ABA, speech, and music can help children develop skills. Autism impacts social skills, verbal/nonverbal communication, understanding others' perspectives, and can cause repetitive behaviors. It also affects families who grieve the future they imagined and feel isolated in supporting their child. However, autism does not define someone and some skills like art or music are strengths for some.