The common cause of knee pain after drinking is gouty knee arthritis, mainly due to increased uric acid. The reasons for knee pain after drinking alcohol are as follows: First, alcohol metabolizes lactic acid in the body and also inhibits the excretion of uric acid by the kidneys, which contributes to the formation of uric acid salts and causes gout and knee pain. Second, alcohol itself will increase the rate of decomposition of purine into uric acid in the body, which can easily lead to gout and knee pain. Patients with high uric acid try not to drink alcohol, whether it is beer, white wine, yellow wine can increase uric acid production, affecting uric acid excretion. Gout patients should limit alcohol intake, eat a light diet and drink more water to avoid triggering gout attacks.