Gout / Hyperuricemia
A sudden, severe pain that often starts at the base of the big toe
When the level of uric acid in your blood stays high, the uric acid slowly turns into tiny crystals inside your joints. When your body treats these crystals as something foreign and attacks them, a sudden and severe joint inflammation called a gout attack (flare) begins.
The most common place is the base of the big toe (the first metatarsophalangeal joint). The pain often starts out of nowhere during the night or early morning, with redness, warmth and swelling. Ankles, knees and hand joints can also be affected.
When a blood test shows a high uric acid level but no attack has happened yet, it is called hyperuricemia. Crystals keep building up quietly even without pain, so a high level found at a health check should not be ignored.
Gout is more common in men, but women also become more likely to develop it after menopause.
Uric acid is a waste product made from your own cells and from purines in food. It builds up when your body makes too much or your kidneys pass too little into the urine
At this stage there are almost no symptoms. It is usually found by a blood test at a routine health check
Uric acid that can no longer stay dissolved turns into fine, needle-like crystals that settle on the lining of the joint
The cells that protect your body gather around the crystals and release powerful inflammatory substances
Drinking alcohol the night before, dehydration, a large meal or hard exercise can act as a trigger
A gout attack itself often settles within one to two weeks, but that does not mean the condition is gone. The crystals are still in the joint, and if the uric acid level stays high the attacks return. Keeping the level at 6.0 mg/dL or below allows the crystals to dissolve little by little, so attacks become less likely over time. If you stop the medicine on your own, the uric acid level goes back up, and attacks have been reported to return within the following few years in many people. Having no attacks is a sign the medicine is working -- it is not a signal that treatment is finished.
If you have a fever together with a red, swollen and severely painful joint, see a doctor right away instead of waiting.
A bacterial infection of the joint, called septic arthritis, can start out looking very much like a gout attack, but it is an emergency that can destroy the joint in a short time if left untreated. Gout and infection cannot be told apart by appearance alone, so fluid is drawn from the joint with a needle (joint aspiration) and checked for crystals and for bacteria.
Do not assume it is "just my usual gout." Seek medical care early if you have a fever, if the pain keeps getting worse, or if several joints swell at the same time.