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Am I Too Old For an Autism Diagnosis?

Updated: Apr 12

I work with clients from their late teens into their late seventies. One question some of my older clients ask, particularly those over the age of sixty, is whether there’s any point in accessing an autism diagnosis at their age. After all, they’ve already lived an entire life without knowing.

Am I too old for an autism diagnosis?

The reality is, living with undiagnosed autism is challenging. Most undiagnosed autistic adults, particularly older adults who grew up in an era of ignorance and lack of acceptance around autism, camouflage their autistic traits heavily. Camouflaging, or masking, involves hiding the traits that are most likely to reveal you as autistic and hiding the levels of anxiety and discomfort you experience in social situations and as the result of sensory or emotional overwhelm. Camouflaging is linked with mental health issues, including anxiety, depression and suicidality(1). Whilst these older adults have got through life, it’s often been tough to do so.

Older autistic women
Older people benefit from an autism diagnosis

Receiving a diagnosis offers the potential of a life where you recognise and respect your needs as different and valid. It allows you to re-evaluate past experiences, which might include being bullied and ostracised for being different, which is so commonly experienced by autistic people(2). And it allows you to access the correct type of support from friends, colleagues and in therapy.

Some of my clients who have received a diagnosis later in life have shared the impact of their diagnosis with me.

Mandy, 62, told me, “I have truly never felt the way I do now. It’s as if I’ve been waiting all my life for something and now I have it. It’s down to feeling validated and understanding all these parts of my past which have been a mystery up until now”.

Sarah, 74, described the change in her life since being diagnosed as autistic. “I don’t really have the words to describe how the diagnosis has changed my life. It’s everything. I can breathe easier. I’m kinder to myself. I’ve stopped putting myself out there all the time for my adult children and I take time for my interests. I feel like I can make this phase of my life one of the best”.

Anthea, 76, told me, “I didn’t tell a soul I was going for a diagnosis. I was terrified about the whole process. I thought people would think I was ridiculous at my age. I thought I was ridiculous! But knowing I’m autistic is the single best thing I’ve ever done. I’m finally learning to be kind to myself. To accept myself. And that’s huge, after a whole lifetime of thinking I’m a failure”.

A diagnosis at any stage in life doesn’t always provide what autistic people might expect, particularly concerning accessing post-diagnostic support, including therapy. In addition, accessing a diagnosis isn’t always easy. But, as my clients’ experience above reveals, it creates a significant shift in perspective, which leads to self-awareness and supportive changes in behaviour. If the issue that’s holding you back from pursuing a diagnosis is your age, don’t let it be. Age shouldn’t be a barrier to improving your quality of life.


Are you an older person who’s questioning whether they might be autistic? If you're still asking, Am I Too Old For an Autism Diagnosis?, and age is the factor stopping you from seeking a diagnosis, don’t let it.

1. Beck, J. S., Lundwall, R. A., Gabrielsen, T., Cox, J. C., & South, M. (2020). Looking good but feeling bad: “Camouflaging” behaviors and mental health in women with autistic traits. Autism, 24(4), 809-821.

2. Neil Humphrey & Judith Hebron (2015) Bullying of children and adolescents with autism spectrum conditions: a ‘state of the field’ review, International Journal of Inclusive Education, 19:8, 845-862, DOI: 10.1080/13603116.2014.981602


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