Gout is a common and complex form of arthritis that can affect anyone. It's characterized by
sudden, severe attacks of pain, swelling, redness and tenderness in the joints, often the joint at
the base of the big toe.
Symptoms
Intense joint pain. Gout usually affects the large joint of your big toe, but it can occur in any joint.
Other commonly affected joints include the ankles, knees, elbows, wrists and fingers. The pain is
likely to be most severe within the first four to 12 hours after it begins.
Lingering discomfort. After the most severe pain subsides, some joint discomfort may last from a
few days to a few weeks. Later attacks are likely to last longer and affect more joints.
Inflammation and redness. The affected joint or joints become swollen, tender, warm and red.
Limited range of motion. As gout progresses, you may not be able to move your joints normally.
Causes
Gout occurs when urate crystals accumulate in your joint, causing the inflammation and intense
pain of a gout attack. Urate crystals can form when you have high levels of uric acid in your
blood.
Purines are also found in certain foods, such as steak, organ meats and seafood. Other foods
also promote higher levels of uric acid, such as alcoholic beverages, especially beer, and drinks
sweetened with fruit sugar (fructose).
Normally, uric acid dissolves in your blood and passes through your kidneys into your urine. But
sometimes either your body produces too much uric acid or your kidneys excrete too little uric
acid. When this happens, uric acid can build up, forming sharp, needlelike urate crystals in a joint
or surrounding tissue that cause pain, inflammation and swelling.
Risk factors
Diet. Eating a
diet rich in
meat and
seafood and
drinking
beverages
sweetened
with fruit
sugar
(fructose)
increase
levels of uric
acid, which
increase your
risk of gout.
Alcohol
consumption,
especially of
beer, also
increases the
risk of gout.
Obesity.
If
you're
overweight,
your
body
produces
more
uric
acid
and
your
kidneys
have
a
more
difficult
time
eliminating
uric
acid.
Medical
conditions.
Certain
diseases
and
conditions
increase
your
risk
of
gout.
These
include
untreated
high
blood
pressure
and
chronic
conditions
such
as
diabetes,
metabolic
syndrome,
and
heart
and
kidney
diseases.
Age and sex.
Gout occurs
more often in
men, primarily
because
women tend
to have lower
uric acid
levels. After
menopause,
however,
women's uric
acid levels
approach
those of men.
Men are also
more likely to
develop gout
earlier —
usually
between the
ages of 30 and
50 — whereas
women
generally
develop signs
and symptoms
after
menopause.
Complications
Recurrent gout. Some people may never experience gout signs and symptoms again. Others may
experience gout several times each year. Medications may help prevent gout attacks in people
with recurrent gout. If left untreated, gout can cause erosion and destruction of a joint.
Advanced gout. Untreated gout may cause deposits of urate crystals to form under the skin in
nodules called tophi (TOE-fie). Tophi can develop in several areas such as your fingers, hands,
feet, elbows or Achilles tendons along the backs of your ankles. Tophi usually aren't painful, but
they can become swollen and tender during gout attacks.
Kidney stones. Urate crystals may collect in the urinary tract of people with gout, causing kidney
stones. Medications can help reduce the risk of kidney stones.
Diagnosis
Joint fluid test. Your doctor may use a needle to draw fluid from your affected joint. Urate
crystals may be visible when the fluid is examined under a microscope.
Blood test. Your doctor may recommend a blood test to measure the levels of uric acid and
creatinine in your blood. Blood test results can be misleading, though. Some people have high
uric acid levels, but never experience gout. And some people have signs and symptoms of gout,
but don't have unusual levels of uric acid in their blood.
X-ray imaging. Joint X-rays can be helpful to rule out other causes of joint inflammation.
Ultrasound. Musculoskeletal ultrasound can detect urate crystals in a joint or in a tophus. This
technique is more widely used in Europe than in the United States.
Dual energy CT scan. This type of imaging can detect the presence of urate crystals in a joint,
even when it is not acutely inflamed. This test is not used routinely in clinical practice due to the
expense and is not widely available.
Treatment
Nonsteroidal anti-inflammatory drugs (NSAIDs). NSAIDs include over-the-counter options such as
ibuprofen (Advil, Motrin IB, others) and naproxen sodium (Aleve), as well as more-powerful
prescription NSAIDs such as indomethacin (Indocin) or celecoxib (Celebrex).
Colchicine. Your doctor may recommend colchicine (Colcrys, Mitigare), a type of pain reliever
that effectively reduces gout pain. The drug's effectiveness may be offset, however, by side
effects such as nausea, vomiting and diarrhea, especially if taken in large doses.
Corticosteroids. Corticosteroid medications, such as the drug prednisone, may control gout
inflammation and pain. Corticosteroids may be in pill form, or they can be injected into your
joint.
Lifestyle and home remedies
Limiting alcoholic beverages and drinks sweetened with fruit sugar (fructose). Instead, drink
plenty of nonalcoholic beverages, especially water. Limiting intake of foods high in purines, such
as red meat, organ meats and seafood. Exercising regularly and losing weight. Keeping your body
at a healthy weight reduces your risk of gout.
Drink plenty of fluids. Stay well-hydrated, including plenty of water. Limit how many sweetened beverages you
drink, especially those sweetened with high-fructose corn syrup. Limit or avoid alcohol. Talk with your doctor
about whether any amount or type of alcohol is safe for you. Recent evidence suggests that beer may be
particularly likely to increase the risk of gout symptoms, especially in men. Get your protein from low-fat dairy
products. Low-fat dairy products may actually have a protective effect against gout, so these are your best-bet
protein sources.
Limit your intake of meat, fish and poultry. A small amount may be tolerable, but pay close
attention to what types — and how much — seem to cause problems for you. Maintain a
desirable body weight. Choose portions that allow you to maintain a healthy weight. Losing
weight may decrease uric acid levels in your body. But avoid fasting or rapid weight loss, since
doing so may temporarily raise uric acid levels.