What Is Borderline Autism in Adults?

“Borderline autism” isn’t an official medical diagnosis, but it’s a term sometimes used to describe adults who show milder traits of Autism Spectrum Disorder (ASD) without meeting the full criteria for a formal diagnosis. These individuals may struggle in certain areas while appearing neurotypical in others.
Some common signs may include:
- Social Challenges – Difficulty understanding social cues, maintaining conversations, or forming close relationships.
- Sensory Sensitivities – Being easily overwhelmed by sounds, lights, or textures.
- Restricted Interests or Routines – Preferring structure and having strong interests in specific topics.
- Communication Differences – Struggling with figurative language, tone of voice, or unspoken social rules.
Many adults with “borderline autism” find ways to mask their traits, which can delay recognition until challenges become more noticeable in work, relationships, or daily life. While the term is informal, it highlights the importance of understanding that autism exists on a spectrum and can look different for each individual.
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SOURCES:
https://www.medicalnewstoday.com/articles/borderline-autism-in-adults
https://www.autismparentingmagazine.com/borderline-autism/
https://www.autismparentingmagazine.com/mild-autism-adults/
https://pubmed.ncbi.nlm.nih.gov/39258830/
https://www.verywellmind.com/mild-autism-definition-traits-treatment-5226088
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