Absence seizures, also known as petit mal seizures, are caused by brief abnormal electrical activity in the brain. They are a type of generalized onset seizure, which means they begin in both sides of the brain at the same time. Absence seizures usually occur in children between the ages of 4 and 14, and they can occur many times a day. Some people may have many episodes daily, which can interfere with school or daily activities.

The exact cause of absence seizures is not known, but they are thought to be genetic. Some triggers that can increase the likelihood of having an absence seizure include:

• Lack of sleep
• Emotional stress or worry
• Not taking medications as instructed by a healthcare provider
• Flashing lights
• Hyperventilation (breathing faster and more deeply than usual)

It is important to note that triggers can vary from person to person, and not everyone with absence seizures will have triggers. If someone is experiencing absence seizures, it is important to work closely with a healthcare provider to find the best treatment plan and to identify any potential triggers.