For some people, hearing a diagnosis is a moment of relief: “So there is a name for this, and I am not the only one.” For others it feels like a verdict, or a label that does not fit. Many people feel both at once, or go back and forth over time.
This article looks at why mental health diagnoses matter, what they can give you, what they can take away, and how you can use a diagnosis in a way that helps you. If you want to know how diagnoses are defined in the first place, see ICD-11, ICD-10 and DSM-5: how mental health diagnoses are made.
What a diagnosis can give you
A name and an explanation
Many people have spent years thinking that something is wrong with them as a person: that they are lazy, too sensitive, chaotic or weak. A diagnosis can offer another explanation. In a systematic review of 21 studies on adults who were diagnosed with ADHD, diagnosis was often described as a turning point that led people to look back at their life with new eyes and, for many, with more self-compassion (McGill et al., 2026).
Access to help
In most health systems, a diagnosis opens doors. In Germany, statutory health insurance pays for psychotherapy only when there is a diagnosis that justifies treatment. A diagnosis can also give access to medication, rehabilitation, accommodations at work or school, and social benefits.
A shared language and community
A diagnosis helps professionals understand each other and choose treatments that have been studied for similar problems. It can also connect you with people who share your experiences, through support groups, books or online communities. Among autistic adults, those who had known their diagnosis for longer tended to feel less dissatisfied with being autistic, and pride in an autistic identity went along with higher self-esteem (Corden et al., 2021).
How a diagnosis can hurt
Stigma from others
Mental health stigma is still common, and it differs a lot between diagnoses. In a study with 665 participants, schizophrenia and antisocial personality disorder were the most stigmatised diagnoses, while depression, generalised anxiety disorder and obsessive-compulsive disorder were the least, and fear was the most consistent driver of stigma (Hazell et al., 2022). Depending on the diagnosis, people may react with pity, fear or distance.
Stigma inside yourself
When people take on negative stereotypes about their own diagnosis, this is called self-stigma. It can lead to what researchers have named the “why try” effect: people start to believe that because they have a mental illness, there is no point in pursuing goals such as work, relationships or independent living (Corrigan et al., 2009). A diagnosis that was meant to open doors can then quietly close them.
A narrower view of the person
A diagnosis can make it tempting to see everything through one lens: every bad mood becomes “my depression”, every forgotten appointment “my ADHD”. This can also happen to professionals. In a series of studies, clinicians who read biological explanations of a patient’s symptoms felt less empathy for that patient than clinicians who read psychological and social explanations of the same symptoms (Lebowitz & Ahn, 2014). Explanations shape how we see people.
Mixed feelings and grief
Even when a diagnosis brings relief, it can also bring grief: for the years when nobody understood, for the person you thought you were, or for the life you imagined. The adults diagnosed with ADHD described this mix of relief, anger and grief, as well as practical struggles with health systems (McGill et al., 2026). These feelings are a normal part of making sense of a diagnosis.
Practical consequences
In some countries, including Germany, recorded diagnoses can matter later, for example when applying for certain insurance policies such as private health or disability insurance, or for some public service positions. This is not a reason to avoid help, but it is a good reason to understand what is recorded and why. You have the right to ask which diagnosis has been documented, and to talk about it with your doctor or therapist.
How to use a diagnosis in a helpful way
- See it as a description, not your identity. A diagnosis describes a pattern of experiences. It does not tell you who you are, what you value or what you can become.
- Ask questions. What does this diagnosis mean in my case? What else did you consider? How might it change?
- Look for what helps, not only for what is wrong. The point of a diagnosis is to guide support. If it does not help you understand yourself or find better care, it is worth discussing.
- Notice the stories you attach to it. “I have depression, so I will never manage a job” is a story your mind tells, and you can gently question it.
- Find people who get it. Others with similar experiences can show you that a good life is possible with, and beyond, a diagnosis.
A reflection
Write down what your diagnosis means to you in one sentence. Then write a second sentence about who you are apart from it: your values, what you care about, what you are good at. Both sentences are true.
If you disagree with your diagnosis
Sometimes a diagnosis does not feel right. Perhaps it was made after a short conversation, perhaps it describes only one part of what you experience, or perhaps your situation has changed since. It is legitimate to say so. You can ask how the diagnosis was reached, which other possibilities were considered and whether it could be reviewed. A second opinion from another professional is also an option. Diagnoses are working hypotheses that can be revised, and a good professional will take your view seriously.
When to talk to someone
If a diagnosis brings up a lot of shame, fear or confusion, or if you disagree with a diagnosis you were given, it can help to talk it through with a therapist or ask for a second opinion. You have a right to understand your diagnosis.
If you are in crisis or having thoughts of ending your life, please call your local emergency number (for example 112 in Europe or 911 in North America and Mexico), or find a free, confidential helpline in your country at findahelpline.com.
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References
- Corden, K., Brewer, R., & Cage, E. (2021). Personal identity after an autism diagnosis: Relationships with self-esteem, mental wellbeing, and diagnostic timing. Frontiers in Psychology, 12, 699335. https://doi.org/10.3389/fpsyg.2021.699335
- Corrigan, P. W., Larson, J. E., & Rüsch, N. (2009). Self-stigma and the “why try” effect: impact on life goals and evidence-based practices. World Psychiatry, 8(2), 75–81. https://doi.org/10.1002/j.2051-5545.2009.tb00218.x
- Hazell, C. M., Berry, C., Bogen-Johnston, L., & Banerjee, M. (2022). Creating a hierarchy of mental health stigma: testing the effect of psychiatric diagnosis on stigma. BJPsych Open, 8(5), e174. https://doi.org/10.1192/bjo.2022.578
- Lebowitz, M. S., & Ahn, W. K. (2014). Effects of biological explanations for mental disorders on clinicians’ empathy. Proceedings of the National Academy of Sciences of the United States of America, 111(50), 17786–17790. https://doi.org/10.1073/pnas.1414058111
- McGill, L., Jardim-Lalor, I., & O’Connor, C. (2026). A systematic review of lived experiences of receiving a diagnosis of ADHD in adulthood. Journal of Attention Disorders, 30(10), 1274–1289. https://doi.org/10.1177/10870547261455946
This article is exploratory and meant for information and reflection. It cannot capture the full complexity of any individual situation, and your own experience may be different. It does not replace a diagnosis or treatment.
