Introduction
Gout is a metabolic disease which occurs as a result of pathological reaction of the joint or periarticular tissues due to the presence of Monosodium Urate (MSU) and Monohydrate crystals in the body.The big toe [first metatarsophalangeal joint (MTP)] is the classic site for gout. One-third of patients may get their first attack at another site such as the in-step of the foot,ankle, knee or hand joints.Can be correlated to Vatapittadhika Vatarakta.

Causes
There are number of reasons  including :
Diet,
Genetic predisposition
Underexcretion of urate,
The salts of uric acid.
Other risk factors for developing gout include obesity, excessive weight gain (especially in youth), moderate to heavy alcohol intake, high blood pressure, abnormal kidney function and eating too much meat and fish that are high in chemicals called purines. Some medicines, such as diuretics, can also bring on gout.
In patients at risk of developing gout, certain conditions can precipitate acute attacks of gout. These conditions include dehydration, injury to the joint, fever, excessive eating and recent surgery.