Every year on March 26th, Purple Day is observed worldwide to raise awareness about epilepsy, one of the most common neurological disorders. Despite affecting millions, epilepsy remains misunderstood, often surrounded by stigma. This blog aims to shed light on what epilepsy is, how it is diagnosed, the types of seizures, its prevalence, genetic links, and available treatments.

What Is Epilepsy?

Epilepsy is a chronic brain disorder characterized by recurrent, unprovoked seizures. Seizures occur due to abnormal bursts of electrical activity in the brain, disrupting normal communication between nerve cells. These episodes can range from brief lapses in awareness to full‑body convulsions. Importantly, having a single seizure does not mean someone has epilepsy; the condition is diagnosed when a person experiences two or more unprovoked seizures at least 24 hours apart.

How Is Epilepsy Diagnosed?

Diagnosing epilepsy is complex because seizures can mimic other conditions such as fainting or migraines. Doctors rely on:

• Medical history & eyewitness accounts – What happened before, during and after the seizure.
• Neurological examination – Testing reflexes, coordination, and cognitive function.
• Electroencephalogram (EEG) – The most common test, recording brain’s electrical activity to detect abnormal patterns.
• Brain imaging (MRI, CT scans) – To identify structural causes like tumours or scarring.
• Blood & genetic tests – To rule out infections or inherited syndromes.

Because seizures are unpredictable, video‑EEG monitoring is sometimes used to capture events in real time.

Seizures and Their Types

Seizures are broadly classified into focal and generalized:

Focal seizures: Begin in one part of the brain.

• Focal aware seizures: Consciousness preserved; may involve unusual sensations or jerking of a limb.
• Focal impaired awareness seizures: Altered consciousness; may include repetitive movements like lip‑smacking or wandering.

Generalized seizures: Involve both sides of the brain.

• Absence seizures: Brief staring spells, often in children.
• Tonic seizures: Muscle stiffening.
• Atonic seizures: Sudden loss of muscle control, leading to falls.
• Clonic/myoclonic seizures: Rhythmic jerking or sudden twitches.
• Tonic-clonic seizures: The classic “grand mal” seizure with stiffening, shaking, and loss of consciousness.

Understanding seizure type is crucial for tailoring treatment.

How Common Is Epilepsy?

Epilepsy affects around 50 million people worldwide, making it one of the most prevalent neurological conditions. Each year, about 5 million new cases are diagnosed globally. Prevalence varies: in high‑income countries, about 49 per 100,000 people are diagnosed annually, while in low‑ and middle‑income countries, rates can exceed 139 per 100,000 due to higher risks from infections, injuries, and limited healthcare access. In India, epilepsy is a significant public health issue, with millions affected across rural and urban areas.

Is Epilepsy Inherited?

Genetics plays a role, but not all epilepsy is inherited. Some forms are linked to specific gene mutations that may be passed down in families, while others arise spontaneously (de novo mutations). Children of parents with epilepsy have a slightly higher risk—about 2–5% compared to 1% in the general population. However, most children of parents with epilepsy do not develop the condition. Epilepsy can also result from acquired causes like head injuries, infections, or strokes.

Treatment Methods Available

While epilepsy has no universal cure, up to 70% of people can live seizure‑free with proper treatment. Options include:

• Anti-seizure medications (ASMs): The first line of treatment. Over 30 types exist, chosen based on seizure type, age, and health profile.
• Surgery: Removing or isolating the brain area where seizures originate, used when medications fail.
• Neurostimulation devices:
  • Vagus nerve stimulation (VNS): Sends electrical pulses to reduce seizures.
  • Responsive neurostimulation (RNS): Detects abnormal activity and delivers corrective impulses.
• Ketogenic diet: High-fat, low‑carbohydrate diet, especially effective in children with drug‑resistant epilepsy.
• Lifestyle management: Adequate sleep, stress reduction, avoiding triggers like alcohol, and strict adherence to medication.

Breaking the Stigma

Beyond medical treatment, epilepsy requires social awareness and compassion. Stigma often prevents people from seeking care or living fully. Purple Day is not just about education—it’s about solidarity. Wearing purple symbolizes support for those living with epilepsy and a commitment to ending discrimination.

Epilepsy is common, complex, and often misunderstood. With accurate diagnosis, effective treatment, and global awareness, millions can lead full, productive lives. On Purple Day, March 26th, let’s pledge to spread knowledge, fight stigma, and support those affected. Epilepsy is not contagious, nor should it define anyone’s potential—it is a condition that can be managed, and with collective effort, lives can be transformed.