What is Diagnostic Overshadowing?
Diagnostic overshadowing occurs when symptoms or behaviours are assumed to be part of an existing diagnosis, without adequate assessment for other potential causes such as medical conditions, mental health disorders, or physical illnesses. For example, a patient with autism experiencing pain may have their discomfort dismissed as a typical autistic behaviour rather than receiving evaluation for a treatable medical issue.
Diagnostic Overshadowing
Being in an environment such as a hospital can be scary for anyone, but for someone who has difficulty communicating because of a pre-existing diagnosis it must be even more frightening. I do wish to add here that diagnostic overshadowing can also happen to people with dementia and any other condition that effects the ability to communicate. A lot more could and should be written about this as more people need to be aware that this does and can happen.
Individuals with a learning / speech difficulty often rely on their care givers who know them well to advocate for them. Whether it is parents, other family members, or care staff perhaps from a residential home. It is their responsibility to let others know what a person's life is like for them outside of a stressful environment. Unfortunately care givers / family are also not always listened to or taken seriously.
There may also be a lack of training on how to support a person that has difficulty in expressing their needs or a one size fits all attitude rather than getting to know an individual on a personal level.
Breakdown of communication
Communication can break down completely and it can be a very dangerous situation leading to assumptions, misdiagnosis, delayed diagnosis, medication errors, and sadly premature death. But it is not always the communication that leads to problems. Assumptions about a person with a learning and ,or speech difficulty can be very dangerous and misleading. Often young people like Connor suffer with constipation due to their original diagnosis but unfortunately this could mask something more serious and new developing, especially in hospital.
Avoidable deaths
It is well documented that people with a learning difficulty experience premature mortality at a much higher rate than the general population, up to 20 years earlier. Many of these deaths are considered preventable.
This is unacceptable and if more care and attention was given to people who are non-verbal or have learning difficulties then hopefully, we can get this number down. There should be no avoidable deaths but we know it is sadly going to happen due to human error or lack of training but it should not happen due to lack of care and attention.
Studies
Several reports have been conducted which make an interesting read which you can access online so I will not write too much about it but please look at the links provided as I feel it will help you understand just how often people with learning difficulties are misunderstood or undervalued.
Mencap have conducted studies which are called death by indifference and the treat me well Campaign. Studies and campaigns by Mencap aim to expose and address the inequalities so many individuals face. some of the reports go back as far as 2007 and probably even further The true stories of individuals and their families are shocking, but here we are today with my own personal story about Connor and attitudes and outcomes have not changed enough.
Take in account an individuals full medical history
SEE THE PERSON, NOT THEIR DISABILITY
More observations should be given to those with a learning difficulty or speech impairment as their behaviours are likely to be telling you somthing.

Treat each person holistically and be more curious about certain behaviours, especially in a healthcare setting.
Do not assume a physical or mental presentation from an individual is part of their existing diagnosis
Do not be afraid of treating someone with a learning difficulty, just adapt your way of connecting with them
Learn what communication a person uses, for example do they use any communication aids? Are they able to use those aids within a healthcare setting? If not, it is paramount to involve someone that knows them well to advise on nonverbal cues and what they mean for that individual
OBSERVE: Play close attention to nonverbal cues, they could be telling you something that could save their life
Actively encourage involvement of people that know an individuals’ behaviours, such as family members and caregivers
Acquire some help or advice if you are unsure, it’s always best to get a second and third opinion rather than continue to treat someone because you think you know best
Seek more training around supporting individuals with a learning difficulty
If you feel your time restraints do not allow you to give more time to someone who may need it, ask for support and guidance on how to proceed
