Gout
usually attacks the big toe (approximately 75 percent of first attacks); however,
it also can affect other joints such as the ankle, heel, instep, knee, wrist,
elbow, fingers, and spine. In some cases, the condition may appear in the joints
of small toes that have become immobile due to impact injury earlier in life,
causing poor blood circulation that leads to gout.Patients with longstanding
hyperuricemia can have uric acid crystal deposits called tophi (singular: tophus)
in other tissues such as the helix of the ear. Uric acid stones can form as
one kind of kidney stone in some case.
Gout is a form of arthritis that affects mostly men between the ages of 40 and
50. The high levels of uric acid in the blood are caused by protein rich foods.
Alcohol intake often causes acute attacks of gout and hereditary factors may
contribute to the elevation of uric acid. Typically, persons with gout are obese,
predisposed to diabetes and hypertension, and at higher risk of heart disease.
Gout is more common in affluent societies due to a diet rich in proteins, fat,
and alcohol. When it follows as a consequence of other health conditions such
as renal failure, it is often regardless of the person's lifestyle.
Gout also
can develop as co-morbidity of other diseases, including polycythaemia, leukaemia,
intake of cytotoxics, obesity, diabetes, hypertension, renal disorders, and
hemolytic anemia. This form of gout is often called secondary gout. Diuretics
(particularly thiazide diuretics) have traditionally been blamed for precipitating
attacks of gout, but a Dutch case-control study from 2006 appears to cast doubt
on this conclusion.(1)
source
: wikipedia