Can You Grow Out of Seizures? The Facts on Remission

Many children with epilepsy do eventually stop having seizures, and a significant portion never have another one. In a long-term follow-up study tracking over 500 children for at least a decade, roughly 63% achieved complete remission, and the vast majority of those stayed seizure-free permanently. But whether a particular person can “grow out of” seizures depends almost entirely on which type of epilepsy they have, what caused it, and how their brain responds to treatment and maturation. Some epilepsy syndromes are practically designed to resolve on their own; others require lifelong management regardless of when they started.

How Often Children Reach Remission

The headline number is encouraging. A study that followed 516 children with epilepsy for at least ten years found that 328 of them, or 63%, reached complete remission. Of those, only 23 relapsed afterward.¹ That suggests most children who become seizure-free tend to stay that way. Separately, a classic study that followed 148 children for 15 to 23 years after stopping their medication found that about 28% relapsed, and the vast majority of those relapses happened within five years of drug withdrawal.² In other words, if a child makes it five years after stopping medication without a seizure, the odds of staying seizure-free are very good.

These numbers cover childhood epilepsy as a broad category, though. Within that category, some epilepsy types have remission rates above 90%, while others hover closer to zero. The type of epilepsy matters far more than any single blood test, scan, or EEG finding.

Self-Limiting Epilepsy Syndromes

Certain childhood epilepsy syndromes are explicitly classified as “self-limiting,” meaning they are expected to resolve as the child’s brain matures. The most common is self-limited epilepsy with centrotemporal spikes, formerly called benign rolandic epilepsy. It typically begins between ages 3 and 13, and most children outgrow it by adolescence.³ The seizures tend to involve twitching of the face or mouth, often during sleep, and whether a child starts having seizures earlier or later in the typical range doesn’t change the eventual outcome much. Research comparing children with earlier versus later onset found that both groups reached seizure freedom in about the same total time, just at different ages.⁴

Childhood absence epilepsy is another strong candidate for outgrowing. Children with this syndrome have brief staring spells, sometimes dozens a day, but the long-term prognosis is favorable. A Dutch study following children for 12 to 17 years found that only about 7% still had seizures at the end of follow-up.⁵ For these children, epilepsy often functions more like a temporary condition than a lifelong one.

Neonatal seizures caused by certain genetic variants also fall into the self-limiting category. Variants in the KCNQ2 gene can cause seizures in newborns that resolve within weeks or months. The mechanism is thought to involve a developmental shift: the affected potassium channel is highly active in the first week of life, but as the brain matures, other potassium channels ramp up and compensate for the defect.⁶ Not all KCNQ2 variants are benign, though. Different mutations at the same spot on the gene can produce either a self-limiting form or a severe developmental epilepsy, depending on how much they disrupt channel function.⁷ The biology here is a vivid illustration of why two children can have mutations in the same gene and face completely different futures.

Syndromes Less Likely to Resolve

Juvenile myoclonic epilepsy, which typically begins in the teenage years, sits at the other end of the spectrum. It responds well to treatment, and most people can achieve seizure control with medication, but it has traditionally been considered a lifelong condition requiring ongoing therapy.⁸ Stopping medication often brings seizures back. That said, the picture isn’t as bleak as the conventional wisdom suggests. A population-based study following people with JME for 25 years found that all seizure types resolved in about 17% of them, and another 13% had only residual myoclonus, meaning roughly a third eventually no longer needed medication.⁹ So even a syndrome labeled “lifelong” has a subset of people who do reach a functional resolution, though it takes decades and there’s no reliable way to predict who falls into that group.

Structural epilepsies caused by visible brain abnormalities, like cortical dysplasia or tumors, also tend to be harder to outgrow. The underlying lesion doesn’t disappear as the brain matures. However, rare case reports have documented spontaneous remission even in children with focal cortical dysplasia, particularly when the abnormality is mild.¹⁰ These cases are exceptions rather than the rule, but they suggest the brain’s capacity for compensation is broader than commonly assumed.

What Doctors Mean by “Resolved”

The International League Against Epilepsy, the main professional body in the field, introduced a formal definition of when epilepsy counts as resolved. A person’s epilepsy is considered resolved if they had an age-dependent epilepsy syndrome and are now past the age when it occurs, or if they have been seizure-free for at least ten years with at least five of those years off medication.¹¹ The word choice is deliberate: “resolved” rather than “cured.” Doctors use this language because there remains a small but real possibility of seizures returning even after years of freedom. Resolved means the risk has dropped low enough to functionally treat the condition as over, not that it’s biologically impossible for a seizure to happen again.

Stopping Medication After Seizure Freedom

One of the most anxiety-producing moments for families and patients is the conversation about tapering off medication. After all, if the drugs are keeping seizures away, why risk stopping them? The answer involves a tradeoff. Antiseizure medications carry side effects, including drowsiness, weight changes, mood effects, and in children, potential impacts on the developing brain. Continuing them indefinitely when they may no longer be needed has its own costs.

The general guidance is that medication withdrawal can be considered after a sustained period of seizure freedom, typically one to two years for children and two to five years for adults.¹² Stopping medication roughly doubles the short-term risk of seizure recurrence compared with staying on it, but this elevated risk is mostly concentrated in the first two years after withdrawal and doesn’t appear to affect the long-term prognosis.¹³ One important wrinkle: about 20% of people who relapse after stopping medication don’t immediately regain seizure control when they restart it, which is a meaningful risk to weigh.

For children specifically, an American Academy of Neurology advisory found no significant difference in recurrence between those who began tapering medication after two years of seizure freedom versus four years.¹⁴ That’s useful information for parents weighing whether to wait longer. An abnormal EEG at the time of withdrawal does increase the relapse risk, though for certain well-controlled syndromes like childhood absence epilepsy, a follow-up EEG may not even be needed if the child is doing well clinically.¹⁵ Factors that make relapse more likely include having had a harder time achieving seizure control in the first place, having seizures that started in adolescence rather than early childhood, and having a syndrome like JME that is known for high relapse rates off medication.¹²

Febrile Seizures and Later Epilepsy

Febrile seizures, the convulsions some young children have during high fevers, are among the most common reasons parents end up in an emergency room. They are frightening to witness, but the prognosis for simple febrile seizures is overwhelmingly positive. Children with simple febrile seizures have a subsequent epilepsy risk of around 1%, only slightly above the general population rate of about 0.5%. Complex febrile seizures, which are longer, repeated within 24 hours, or involve only one side of the body, carry a higher risk of about 4 to 6%, depending on how many complex features are present.¹⁶

When febrile seizures do eventually lead to an epilepsy diagnosis, the strongest predictors are neurodevelopmental delay, a family history of epilepsy, focal features during the seizure, and frequent recurrences.¹⁷ Abnormal EEG findings and preterm birth have also been linked to higher risk.¹⁸ For the vast majority of children with simple febrile seizures, though, the seizures stop on their own as the child gets older, and no epilepsy develops.

Adult-Onset Epilepsy and Remission

Most of the optimistic “growing out of seizures” narrative applies to children, and with good reason. Epilepsy that begins in adulthood has a different trajectory. Older data consistently shows that the probability of remission is highest when generalized seizures start before age 10 and lower for adults with partial complex seizures.¹⁹

That said, adult-onset epilepsy is not a monolith. When the epilepsy type is idiopathic generalized epilepsy, adults who develop it may actually do better than younger patients with the same diagnosis. A study comparing adult-onset versus earlier-onset idiopathic generalized epilepsy found that the adult-onset group had significantly higher rates of early remission, roughly 56% compared with 24%.²⁰ This is a counterintuitive finding that challenges the assumption that adult-onset epilepsy always means a worse prognosis. The caveat is that this applies to a specific category of generalized epilepsy, not to all adult seizure disorders.

How Puberty Fits In

Because many childhood epilepsies resolve around the time of puberty, it’s natural to wonder whether hormonal changes are driving the remission. The relationship is more complicated than a simple cause-and-effect. One study found that children with generalized tonic-clonic seizures actually experienced a significant increase in seizure frequency during the pubertal growth spurt, with a decrease afterward, and this wasn’t explained by medication levels.²¹ Another study looking at whether epilepsy clusters around the onset of menstruation in girls found no clear connection.²²

A broader assessment concluded that puberty generally does not influence epilepsy in a consistent direction, though female patients after menarche may experience somewhat better seizure control.²³ The timing of remission in self-limiting syndromes probably has more to do with neural maturation, including changes in how ion channels are expressed and how brain circuits reorganize, than with any single hormonal switch being flipped.

When Seizures Stop but Other Challenges Don’t

One of the less discussed realities of “outgrowing” seizures is that seizure freedom doesn’t necessarily mean everything goes back to normal. Cognitive and developmental difficulties can persist even after seizures are fully controlled. A review of cognitive outcomes in pediatric epilepsy found that impairments often continue despite seizure control.²⁴ This includes difficulties with attention, memory, processing speed, and academic performance. The reasons are multifactorial: the underlying brain condition that caused the seizures, the effect of seizure activity during critical developmental windows, and the side effects of antiseizure medications themselves can all leave traces.

For families, this means that the end of seizures is a milestone worth celebrating, but it may not mark the end of the need for support. Learning accommodations, neuropsychological monitoring, and attention to mental health remain important even after a child’s EEG normalizes and medications are tapered.

The Mortality Dimension of Remission

There’s a practical reason beyond quality of life that remission matters so much. Sudden unexpected death in epilepsy, known as SUDEP, is a rare but devastating risk for people with ongoing seizures. The overall incidence in population-based studies is about 0.35 cases per 1,000 person-years, but the risk is concentrated in people with uncontrolled seizures. It is rare in people with new-onset epilepsy and in those who have reached remission.²⁵ In childhood-onset epilepsy specifically, remission is the single variable that most significantly affects epilepsy-related mortality, regardless of what originally caused the seizures.²⁶ This finding underscores why aggressive pursuit of seizure control matters even if full remission remains uncertain.

The Ketogenic Diet and Seizure Recurrence

The ketogenic diet, a high-fat, very-low-carbohydrate eating plan used for drug-resistant epilepsy, can produce seizure freedom in some children who don’t respond to medications. But what happens after the diet is stopped? In a multicenter study of 216 children in Argentina, 20 who became seizure-free on the diet eventually discontinued it. Seizures returned in five of them, a recurrence rate of 25%.²⁷ A study from a Chinese center found a higher recurrence rate of about 47% among 51 children who achieved seizure freedom on the diet, with shorter duration of diet treatment (less than 12 months) and persistent EEG abnormalities predicting higher relapse risk.²⁸ The recurrence rates here are higher than what is typically seen after withdrawing standard medication in children with well-controlled epilepsy, which makes sense given that these children had drug-resistant seizures to begin with. The underlying epilepsy in this population is harder to treat, so it’s also harder to leave behind.

Why the Mechanisms Behind Remission Remain Murky

Considering how common it is for childhood epilepsy to resolve, you might expect scientists to have a clear explanation for why. They don’t, really. The mechanisms behind seizure remission are still poorly understood, and this gap in knowledge complicates clinical decision-making about when to withdraw treatment and how to assess the risk of future relapse. In self-limiting syndromes, brain maturation clearly plays a central role. The KCNQ2 channelopathy example illustrates one pathway: a temporary mismatch between potassium channel types in the newborn brain creates a window of vulnerability that closes as other channels come online.⁶ For other syndromes, the story is less specific. Something about how neural circuits reorganize during development tips the balance from seizure-prone to stable, but the precise cellular events are still being mapped out.

Research into how the brain’s immune cells interact with synapses during epilepsy has added some pieces to the puzzle without solving it. For instance, studies have shown that immune cells in the brain can selectively strip away inhibitory connections while leaving excitatory ones intact, which could shift the brain’s excitation-inhibition balance in ways that either promote or suppress seizures depending on the context.²⁹ Whether this kind of synaptic remodeling plays a role in the natural resolution of childhood seizures, or only in making seizures worse, is an open question. The honest state of the science is that we know remission happens, we can predict who is more likely to achieve it, but we can’t fully explain the biological switch that makes it happen.