Adult absence seizures are commonly overlooked or misattributed to inattention. Learn why consistent logging reveals true frequency and how to get a diagnosis.
Absence seizures in adults are a clinical enigma. They're frequently missed entirely, sometimes for decades. When they are recognised, they're often dismissed as daydreaming, attention deficit, or "just being scatterbrained." Yet they can have serious consequences for driving safety, employment, and personal relationships. If you're an adult experiencing frequent blank spells with no memory of what happened, this guide will help you understand what might be happening and why meticulous logging is essential to getting a diagnosis.
An absence seizure is a brief episode of altered consciousness, typically lasting 5–30 seconds, in which the person appears to "blank out" or stare vacantly. They lose awareness of their surroundings, become unresponsive to stimuli, and retain no memory of the episode afterwards. The seizure ends abruptly, and the person resumes whatever they were doing immediately — often without realising a gap has occurred.
In adults, absence seizures may be accompanied by subtle movements:
Critically, there's usually no post-ictal period — no confusion, grogginess, or recovery time. This differs from many other seizure types and is a key diagnostic feature.
Absence seizures masquerade as inattention so convincingly that even experienced healthcare professionals can miss them initially. In adults, the stakes are higher. A person might attribute frequent blank spells to stress, mental fatigue, or poor concentration. Colleagues might assume they're daydreaming. The person themselves may not recall each episode clearly enough to realise something is systematically wrong.
The problem is compounded by the fact that childhood absence epilepsy is well-recognised, but adult-onset absence seizures or continuation into adulthood is less frequently discussed in medical training. A patient describing "staring spells" to their GP may be offered cognitive behavioural therapy for attention problems rather than referred for an EEG.
If you have frequent absence seizures and hold a UK driving licence, you must inform the DVLA. A brief absence at the wheel — even for 10 seconds — is a collision waiting to happen. Yet many people don't realise how frequently their seizures occur because memory loss is part of the condition. You have no recall of the episodes; family members might notice them, but the person living with the seizures simply doesn't know how many happen in a typical day.
This is where consistent, objective logging becomes crucial. Without a record of seizure frequency, you might underestimate your risk considerably. The DVLA needs clear evidence of seizure control before licensing can be reconsidered — and that evidence must come from a documented seizure diary.
Frequent absence seizures can affect job performance (particularly roles requiring continuous attention), create puzzlement or frustration in personal relationships (partners noticing blank spells but the person having no memory of them), and contribute to a sense of lost time and disconnection. Partners or family members may feel they're watching someone "disappear" repeatedly throughout the day, which can be emotionally taxing.
Because you have no memory of absence seizures, you cannot self-diagnose. You cannot accurately tell your doctor "I had three seizures this week" without objective evidence. This is where a detailed seizure diary becomes invaluable — and where digital logging changes the game.
Using Seizure Tracker, you can log absence seizures immediately when a carer, family member, or colleague notices them and alerts you. Record the exact time, duration, what you were doing, and any witnesses to what they observed. Over one week, a pattern of 10–15 logged episodes is compelling evidence that something significant is happening — far more convincing than saying "I think I'm having spells."
Many adults are shocked when they see a week's worth of logged seizures displayed. The frequency is often far higher than they'd realised. This objective data is exactly what your neurologist needs to confirm a diagnosis via EEG.
Seizure Tracker's sub-user feature is particularly valuable for absence seizures in adults. You can invite your partner, close family member, or colleague to have read or write access to your seizure log. They can log episodes they observe — with time, duration, context, and their observations — while you go about your day. You then have a comprehensive record that you couldn't have created alone, because you were unconscious during each event.
This transforms the clinical conversation. Instead of saying "I think I'm having blackouts," you're showing your GP a calendar of observed, logged episodes with witness accounts. That's the difference between a diagnosis taking months and one taking weeks.
Some people report brief confusion or a period of disorientation immediately after an absence seizure, though this is less common than with other seizure types. If you experience any post-ictal symptoms — mild headache, fatigue, memory fog, emotional changes — log these too. They contribute to the overall clinical picture and help your neurologist understand the impact of your seizures on your day-to-day function.
Tip: If you suspect absence seizures, ask family members or close colleagues to help you log episodes. Keep your phone nearby and ask them to alert you when they notice a blank spell. Photograph or video the episode if possible — even a few seconds of a staring spell is diagnostic gold for your neurologist. Many diagnoses are confirmed within 1–2 weeks of starting objective logging.
Once absence seizures are confirmed via EEG (typically showing 3Hz spike-and-wave activity), treatment usually begins with medication. First-line options include ethosuximide or sodium valproate, both effective for many adults. Your neurologist will also discuss the driving implications and provide guidance on safe driving resumption if seizures come under control.
Continuing to log your seizures after starting medication shows your neurologist whether the medication is working. If seizures decrease or stop, that's excellent. If they persist despite medication, your neurologist knows a dose increase or medication change is needed — again, because you have objective data, not memory-based estimates.
Absence seizures in adults are treatable. The key is getting diagnosed. And diagnosis begins with recognition — yours, your GP's, and most importantly, a clear, documented seizure log that proves something real is happening.
One-tap logging, automatic timestamps, PDF reports for your GP, and shared access for family and carers — all in one place.
Get Seizure Tracker →