What is chronic fatigue syndrome?
Chronic fatigue syndrome (CFS) is a condition of overwhelming
fatigue that lasts for at least 6 months and interferes with
your daily life.
Most people with CFS are 20- to 40-year-old adults. The
syndrome affects women more often than men. However, men
and women of all ages can have CFS.
How does it occur?
The cause of chronic fatigue syndrome is not known.
What are the symptoms?
Physical symptoms of CFS may include:
- overwhelming exhaustion, tiredness, or weakness that
lasts longer than 6 months
- sore throat
- tender lymph nodes
- muscle pain
- joint aches and pain without swelling or redness
- headache
- not feeling rested after sleep
- malaise (general discomfort or uneasiness) lasting more
than 24 hours after you exert yourself.
Psychological symptoms of CFS may include:
- trouble remembering things
- trouble concentrating
- confusion
- anxiety
- irritability
- apathy and depression
- personality changes
- mood swings
- reduced sex drive.
How is it diagnosed?
It is difficult to diagnose CFS because many illnesses cause
symptoms similar to those of CFS. Your health care provider
will try to rule out other illnesses and possible causes of
your fatigue. Your provider will ask about your medical
history and symptoms. You will have a complete physical
exam. If you have been having fevers but don't have one
when you see your provider, you may be asked to record your
temperature at home several times a day.
You may have a number of tests, such as urine and blood
tests, to check for infections, immune or metabolic
diseases, hormone problems, anemia, and tumors.
If your provider cannot find another specific cause for your
fatigue, you may be diagnosed with chronic fatigue syndrome.
How is it treated?
If you have chronic fatigue syndrome, there is currently no
known cure. However, in addition to medicine to treat some
of the symptoms, 2 types of treatment can be helpful:
- a special exercise program
- behavior therapy.
The exercise program starts slowly and easily. You increase
the amount of exercise very gradually with the goals of
increasing your muscle strength and energy. Behavior
therapy helps you focus on the positive (what you are able
to do) and can help you feel more hopeful as your muscle
strength and energy improve. Both exercise and behavior
therapy can help reduce other symptoms of CFS such as
headaches and trouble concentrating.
Your health care provider may prescribe medicine for
symptoms such as headache and muscle pain. Antidepressant
medicines may help lessen your fatigue and improve your
ability to function.
How long will the effects last?
Chronic fatigue syndrome is not well understood or easily
treated. You may continue to have the symptoms for months
or years. Usually, the symptoms are most severe during the
first year.
How can I take care of myself?
- Rest as much as possible while you and your health care
provider try to treat the illness.
- Follow the treatment prescribed by your health care
provider.
- Follow your health care provider's recommendations for
exercise.
- Do not smoke.
- Eat healthy meals.
- Learn to pace yourself to avoid fatigue. Prioritize your
activities each day. Do the most important ones in the
morning when your energy level may be higher. It doesn't
matter if everything doesn't get done in 1 day. Ask for
help at home and at work when the load is too great to
handle. Take frequent rest breaks during the day to
relax or walk.
- Engage in recreational activities at least once or twice
a week.
- Join local support groups. Talking with others who have
similar problems can really help.
If nothing helps, you may wish to get a second medical
opinion.
For more information, contact:
What can be done to help prevent fatigue?
See your health care provider if you have any unusual or
persistent body changes or symptoms. This will allow your
provider to identify and treat any underlying health
problems early and help prevent your fatigue from becoming
worse.


Disclaimer: This content is reviewed periodically and is subject to
change as new health information becomes available. The
information provided is intended to be informative and educational and is not a
replacement for professional medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
HIA File GEN4406F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.
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