Seizures don’t always look like what you see in movies. While some involve dramatic convulsions, others are so subtle they can be mistaken for daydreaming or confusion. Knowing what to look for across different types of seizures helps you respond quickly and recognize when something needs medical attention.
The Seizure Most People Recognize
A tonic-clonic seizure (formerly called a grand mal seizure) is the most visually obvious type. It unfolds in two distinct stages. During the tonic phase, the person’s muscles suddenly stiffen, they may let out a groan or yell, and they fall to the ground. They lose consciousness. This phase typically lasts 10 to 20 seconds.
Then the clonic phase begins. The arms and legs jerk rhythmically, alternately flexing and relaxing. These convulsions usually last one to two minutes. If convulsions continue beyond five minutes, it’s a medical emergency and you should call 911 immediately.
Other things you might notice during a tonic-clonic seizure include drooling or foaming at the mouth, eyes rolling back, skin turning slightly blue (especially around the lips), and loss of bladder or bowel control. The person will not respond to their name or any stimulation during the event.
Seizures That Look Like Zoning Out
Absence seizures are easy to miss entirely. The person suddenly stops what they’re doing and stares vacantly, often mistaken for a brief lapse in attention. These seizures last about 10 seconds on average, though they can stretch to 30 seconds. There’s no falling, no convulsing.
The subtle signs to watch for: eyelid fluttering, lip smacking, chewing motions, finger rubbing, or small movements of both hands. The person won’t remember the episode afterward. Absence seizures are most common in children and can happen dozens of times a day, which is why teachers or parents are often the first to notice a pattern. If a child seems to “blank out” repeatedly and can’t be snapped out of it by calling their name, that’s a red flag worth investigating.
Seizures With Repetitive Automatic Behaviors
Focal seizures that impair consciousness (sometimes called complex partial seizures) are particularly tricky to identify because the person may appear awake but acts strangely. They can’t respond normally to you and won’t remember the episode later.
The hallmark is involuntary repetitive movements called automatisms. These include rubbing the hands together, picking at clothing or the air, lip smacking, and chewing motions. Less commonly, people may repeat words or phrases, laugh, scream, or cry. When the seizure originates in the frontal lobe of the brain, you might see bicycling leg movements or other complex, seemingly purposeful actions.
Some people do things during these seizures that are dangerous or socially alarming, like walking into traffic or removing their clothes. The key identifier is that the behavior is purposeless and the person seems “checked out” despite being upright and moving. They may wander or appear confused. If you try to talk to them, they either won’t respond or will respond in ways that don’t make sense.
Seizures That Last a Split Second
Two less common seizure types are easy to overlook because they happen so fast. Myoclonic seizures cause short, lightning-quick jerking movements, almost like being startled. A single jerk of an arm or the whole body can happen and be over in under a second. Everyone experiences occasional muscle twitches, but myoclonic seizures tend to happen in clusters or follow a pattern, particularly after waking up.
Atonic seizures are the opposite. Instead of muscles contracting, there’s a sudden, unexpected loss of muscle tone. The person goes limp and drops. These are sometimes called “drop attacks.” If only the neck muscles are affected, the head may simply slump forward. If the whole body is involved, the person collapses to the ground. Recovery is usually quick, but the falls themselves can cause serious injury.
Warning Signs Before a Seizure Starts
Some people experience a warning phase called an aura in the moments before a seizure. Auras are actually focal seizures themselves, but they can serve as a signal that a larger seizure is coming. Common aura experiences include a rising feeling in the stomach, a sudden wave of fear or anxiety, déjà vu, dizziness, tingling sensations, or changes in how things smell, sound, or taste. Some people see flashing lights or spots.
If someone you know has epilepsy and tells you they’re having an aura, take it seriously. Help them get to a safe position, preferably sitting or lying down away from hard or sharp objects, before the seizure progresses.
How to Tell a Seizure From Fainting
Fainting (syncope) and seizures both involve a loss of consciousness, and telling them apart can be genuinely difficult in the moment. Research involving over 500 patients found that the symptoms surrounding the loss of consciousness alone could correctly distinguish seizures from fainting in 94% of cases.
Some practical differences to watch for: fainting usually has a clear trigger like standing up too quickly, overheating, or emotional distress. The person often feels lightheaded or nauseated beforehand and goes pale. Recovery from fainting is generally rapid, with the person feeling oriented within seconds to a minute. Seizures, by contrast, are more likely to involve rhythmic jerking, a stiffened body, tongue biting, a blue tint to the skin, and a prolonged period of confusion afterward. A person who faints and briefly twitches (which can happen when the brain is briefly deprived of blood flow) will recover much faster than someone who has had a seizure.
What the Recovery Phase Looks Like
After a seizure, the person enters what’s called the postictal state. This is often as important to recognize as the seizure itself, because it confirms that a seizure has occurred and tells you something about its severity. On average, this recovery phase lasts between 5 and 30 minutes, though it can stretch to a full day or occasionally longer.
The most common symptoms include confusion, headache or migraine, extreme fatigue, memory loss, difficulty speaking, muscle soreness, and mood changes like agitation, anxiety, or embarrassment. More severe seizures can cause a temporary loss of consciousness resembling a deep sleep, hallucinations, or delirium. Physical symptoms like nausea, coughing, an abnormal heartbeat, and loss of bladder control are also possible.
If someone near you has just had a seizure, the confusion and disorientation during this phase are completely normal. Stay calm, speak gently, and don’t overwhelm them with questions. They may not know where they are or what happened. Symptoms typically resolve on their own within 24 hours. If they persist beyond that, medical follow-up is warranted.
When a Seizure Is an Emergency
Not every seizure requires a 911 call, especially for someone with a known seizure disorder who has a typical episode. But certain situations always warrant emergency help:
- The seizure lasts longer than five minutes. This is the single most important threshold to know. Time it on your phone.
- The person doesn’t regain consciousness between seizures. Back-to-back seizures without recovery in between is a dangerous situation called status epilepticus.
- It’s their first seizure. Any first-time seizure needs medical evaluation.
- The person is injured, pregnant, or has diabetes.
- The seizure happens in water.
- Normal breathing doesn’t resume after the seizure ends.
If you witness a seizure, the most useful thing you can do beyond keeping the person safe is to note the time it started, what it looked like, and how long it lasted. That information is extremely valuable for doctors trying to identify what type of seizure occurred and how to treat it.