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What is a Transient Ischemic Attack (TIA)?


A Transient Ischemic Attack (TIA) is an early warning that a stroke (also called a brain attack) is coming. A TIA is a temporary stroke, which causes no lasting damage.

The effects of a stroke can be very serious and lasting, so if you think you are having symptoms of a TIA or stroke – even if they don’t last – get medical help immediately.

Symptoms of TIA and Stroke

Symptoms may come on suddenly and last for a few seconds or a few hours. You may have symptoms only once, or they may come and go for days. If you notice any of the following symptoms, don’t wait. Call 911 or emergency services right away:

  • Weakness, numbness, tingling or loss of feeling in your face, arm or leg.
  • Trouble seeing in one or both eyes; double vision.
  • Slurred speech, trouble talking, or problems understanding others when they speak.
  • Sudden, severe headache.
  • Dizziness or a feeling of spinning.
  • Loss of balance or falling.
  • Blackouts.