Overview
Transient global amnesia (TGA) is a rare type of amnesia that causes sudden memory loss. When this happens
you cannot remember events from your recent past or make new memories. You may also not know where you are,
why you are there, or what the date is. You may ask the same question many times. Unlike other types of
amnesia, you do know who you are and you can recognize people that you know. An episode usually does not last
more than 6 hours and it rarely happens again.
What causes TGA is not fully known. But, in some cases, an intense workout, sex, or stress may cause an
episode. People who get migraines are more likely to have TGA.
Your doctor probably did an exam and ran some tests to rule out certain health problems that can also cause
sudden memory loss, such as a stroke, brain tumor, seizure, head injury, or an infection. If your doctor did
not find any of these things to be the cause of your memory loss, you will not need treatment and you can go
back to your usual activities. Although you may never be able to remember what happened right before or during
the episode, the rest of your memory should come back.
TGA does not increase the chance that you will have a stroke or seizures in the future.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all
appointments, and call your doctor if you are having problems. It is also a good idea to know your test
results and keep a list of the medicines you take.
How can you care for yourself at home?
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There is no treatment for TGA. Expect your symptoms to go away with time.
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Take good care of yourself. Eat a healthy diet. Get plenty of rest. Limit how much alcohol you drink. Do
not smoke. If you need help quitting, talk to your doctor about stop-smoking programs and medicines. These
can increase your chances of quitting for good. -
Find healthy ways to deal with stress. Regular exercise is a good way to manage stress.
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Talk to your doctor if you have questions about TGA.
When should you call for help?
anytime you think you may need emergency care. For example, call if:
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Call your doctor now or seek immediate medical care if:
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Watch closely for changes in your health, and be sure to contact your doctor if you have
any problems.
Current as of: December 20, 2023
Content Version: 14.0
Care instructions adapted under license by your
healthcare professional. If you have questions about a medical condition or this instruction, always ask
your healthcare professional. Healthwise, Incorporated disclaims any warranty or liability for your use of
this information.
