Understanding Functional Neurological Disorder (FND)
Real neurological symptoms without structural damage — when the brain's 'software' isn't working properly.
What Is FND?
Functional Neurological Disorder (FND) causes real neurological symptoms — weakness, tremors, seizures, sensory changes — without identifiable structural damage to the nervous system.
It is sometimes described as a 'software problem' rather than a 'hardware problem' in the brain.
FND is the second most common reason for neurological outpatient visits.
It is not 'imagined' or 'faked' — the symptoms are genuine and can be severely disabling.
Common Symptoms
Functional weakness or paralysis in limbs.
Functional tremor or involuntary movements.
Non-epileptic seizures.
Speech difficulties (functional dysphonia).
Sensory symptoms: numbness, tingling, or visual disturbances.
Walking difficulties and balance problems.
Fatigue and cognitive symptoms ('brain fog').
The Challenge of FND
Many doctors still don't fully understand FND, leading to poor care.
Patients often feel dismissed or told their symptoms aren't real.
The historical label 'hysteria' has left a stigma that persists.
Lack of awareness means many people go years without diagnosis.
The invisible nature of FND makes it hard for others to understand.
Treatment and Hope
Specialist physiotherapy focused on retraining the nervous system.
Psychological therapy to address factors maintaining symptoms.
Education about FND — understanding the condition is itself therapeutic.
Occupational therapy for daily functioning.
The FND Hope charity provides excellent resources and community support.
Many people improve significantly with appropriate, multidisciplinary treatment.