CausesBy Mayo Clinic staff
The underlying cause of transient global amnesia is unknown. There appears to be a link between transient global amnesia and a history of migraines, though the underlying factors that contribute to both conditions aren't fully understood.
Some commonly reported events that may trigger transient global amnesia include:
- Sudden immersion in cold or hot water
- Strenuous physical activity
- Sexual intercourse
- Medical procedures, such as angiography or endoscopy
- Mild head trauma
- Acute emotional distress, as might be provoked by bad news, conflict or overwork
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