Visit previous version of website
FND Links Feedback Donate Language
  • English
Home / Causes / Misdiagnosis / Comorbidity

Misdiagnosis / Comorbidity

Is the diagnosis wrong?

Patients with functional/dissociative symptoms are often concerned that their diagnosis may be wrong. Especially since there is no ‘scan’ or blood test that can make the diagnosis.

There are many neurological problems. The commonest ones are

• Stroke
• Epilepsy
• Migraine / Headache
• Functional / Dissociative Symptoms
• Multiple Sclerosis
• Brain Tumour
• Parkinsons Disease
• Myasthenia Gravis
• Motor Neuron Disease (also called Amyotrophic Lateral Sclerosis)
• Peripheral Neuropathy
• Nerve Root or Spinal Cord entrapment
• B12 deficiency and Thyroid disorders
• Many hundreds of others…..

On the other hand there are also only a limited number of neurological symptoms. The commonest ones are:

• Headache
• Weakness
• Sensory Symptoms
• Blackouts
• Memory / Cognitive symptoms
• Speech / Swallowing Symptoms
• Dizziness
• Visual Symptoms – reduced vision, double vision
• Neck, Back and Limb pain
• Tremors, jerks, spasms and contractures
• Bladder symptoms

In fact there are such a limited number of neurological symptoms you can see that its quite understandable for someone with more than one neurological symptom to start to wonder if they have one of the common (or uncommon) neurological diseases.

This website does not attempt to explain how a neurologist diagnoses all of these diseases. But this list emphasises that neurologists are very familiar with the conditions that you, your family or friends may have been concerned about as well as all the symptoms that you have.

You may be surprised to see FND so high up the list because few people have heard of them. In fact around 15% of all patients seen in UK neurology clinics as new patient have symptoms that are diagnosed as functional or dissociative. Around 5% of all new outpatients have symptoms of weakness, blackouts or numbness that are related to FND

If your neurologist has decided that you have FND it should be for a good reason. There should be positive signs that the problems is functional, it should not just be because the scan is normal or the tests are normal. See positive signs of functional weakness, functional sensory disturbance and dissociative seizures.

In the same way that neurologists diagnose Parkinson’s disease, Migraine and Epilepsy at the bedside with a detailed history and examination (and without any tests), so too can FND be accurately diagnosed.

Can you have FND and another neurological condition?

Yes, this happens quite a lot. Heres a video…

Things can become tricky when a patient has an underlying neurological disease (like multiple sclerosis) and they also have clear evidence of functional symptoms (like FND related limb weakness). In some people, having a neurological disease can actually trigger the development of functional symptoms and something that a neurologist should always think about. This is often why investigations are performed even when clinically the diagnosis seems clear. Some people can have two diagnoses – one of a neurological disease and another of superimposed functional symptoms. For example, about 10-15% of people with dissociative seizures also have epilepsy (but 90% still do not).

You can read an article I wrote with colleagues about pitfalls in misdiagnosis of functional symptoms and neurological disease below.

Click the image for an article written for neurologists about the pitfalls of diagnosis of FND and related conditions

Reassuringly however, studies that have looked at how often neurologists get the diagnosis wrong have tended to agree (at least in the last 30 years) that the proportion of patients in whom the diagnosis turns out to be incorrect later on is about 5%. The graph below is based on 27 studies and nearly 1500 patients followed up for an average of 5 years. It shows how the diagnosis has become more accurate over the years.

This study collected together all the previous studies looking at how often doctors got the diagnosis of functional neurological symptoms wrong. Rates of misdiagnosis have been around 5% since 1970. This is the error rate for all neurological conditions. (Stone et al BMJ. 2005; 331: 989;

A misdiagnosis rate of 5% may seem a lot but perhaps surprisingly its less than the numbers of patients misdiagnosed with epilepsy, multiple sclerosis and similar to the proportion wrongly told they have motor neurone disease.

The evidence suggests that misdiagnosis of a neurological disease when the problem is actually functional / dissociative symptoms is just as common as the other way round.

In conclusion…

Any doctor, usually a neurologist, that makes the diagnosis of FND should be very familiar both with the possible neurological diagnoses that those symptoms could represent and also with the positive clinical features of functional symptoms. Even then, they will sometimes get it wrong, but no more often than for other neurological diagnoses.

functional remedies hemp oil cbd oil product placement in movies charlettes web cbd oil how much thc is being found in cbd oil in tx mayo clinic cbd oil dosage cbd oil for sale in fayetteville tn can i make my own cbd oil cbd oil need mmj card to buy hemp seed oil soap recipe how to take cbd oil how many drops cbd oil benefits for hair organic non psychoactive cbd oil lu za cbd oil federal security clearance cbd oil cbd oil temple texas what is whole greens cbd can i fly with thc oil hempworx cbd oil price cbd oil for esld cbd oil for brain tumores cbd oil adverse reactions how long who makes reputable cbd oil do i need to be registered to buy cbd oil cbd oil and fmcsa regulations cbd oil for sleep as shown on tv cbd oil cypress tx medical practitioners use cbd oil tv cbd oil cbd oil absrbtion rate charts does cbd oil work for severe depression veterens day cbd oil cbd oil hait

superman combo viagra cialis increase libido on antidepressants kava for premature ejaculation do testosterone pills help grow facial hair drugs causing erectile dysfunction cialis alternative best male penis enhancement pills lilly cialis coupon erection medication over the counter where to buy pills experience pills pills to pump more blood in your penis diabetic male enhancement sexual medicine for male best male enhancement size increase does nitric oxide work like viagra top male performance enhancement male enhancement pills dangerous saw palmetto and male libido testosterone booster gnc side effects er dysfunction pink playboys pills buy testosterone pills online strong male enhancement pills mail order male enhancement pills does working out increase testosterone reddit penis enlargement pills before after images best male enhancement pills for girth order penis enlargment pills non prescription erectile dysfunction medication naked boys on testosterone pills on tumblr focus medicine walmart

tom segura weight loss the keto reset diet cookbook pregnancy weight loss exercises diet pills work lamictal weight loss heart healthy diet to lose weight best laxative to lose weight fast jenna jamesons keto diet teas that make you lose weight fast are weight loss pills bad for you foods that speed up weight loss fat burning pills vitamin shoppe skinny me diet pills ab slim diet pills best reviewed diet pills where can you buy healthe trim diet pills b pollen pills for weight loss dr nking lemon water to lose weight kelly clarkson keto pills best buy diet pills mushroom weight loss pills can you dr nk red wine on keto diet benefits of keto diet bodybuilding does weight loss pills really work 24 hour diet pills postnatal weight loss pills how to get fat in keto diet diet pills for women that work fast best weight loss pill without caffeine phase out diet pills review strong pills to lose weight is ultra fast keto boost legit

home window repair near honey brook pa 19344 window mesh screen repair sliding door window replacement windows os replacement window moisture repair andersen window crank replacement parts replace window pane lowes window replacement parts interior window replacement alside replacement window replacement windows hawaii home window replacement seal jalousie window replacement glass replacement window for door window glass replacement bellevue home window repair clinton utah cost of egress window installation replacement windows at menards window and door repair eclipse replacement windows charlotte window repair casement window glass replacement window repair in calgary replacing windows in stucco house cadillac window repair fiberglass window replacement free window screen repair fiberglass replacement windows cost window contractors in my area a1 energy efficient windows new home windows near me storm door window latch replacement