Gout and the foot
Gout is a rheumatologic disease generally affecting joints and most especially the base of the big toe. The infection is often chronic, characterized by intense inflammation of the joint, causing swelling and very intense pain.
The main cause of gout attacks is a high blood concentration of uric acid (greater than 70mg/l, or 420mmol/l). The uric acid may then accumulate as crystals in joints, causing an inflammatory reaction and intense pain.
As well as joint swelling, gout can lead to complications such as urinary calculi (urinary stones) or crystal deposits under the skin (tophi).