The normal amount of serum uric acid in the body is 268-488 mmol/L for men and 178-387 mmol/L for women, and if the serum uric acid in the body exceeds this normal amount, then the uric acid is elevated. The main factor that causes high uric acid is a problem with the metabolism of purines in the body. Most of them are related to the following – these diseases. 1, gout is the most common, hyperuricemia is one of the important biochemical indicators of gout. The higher the blood uric acid level, the greater the chance of gout, but the blood uric acid level can be normal in some gout patients. 2, kidney disease, like acute or chronic glomerulonephritis people’s serum uric acid concentration can be significantly higher. 3, Long-term fasting and diabetes also tend to cause elevated ketone bodies in the blood and excrete them from the urine, competitively inhibiting the excretion of uric acid in the blood by the renal tubules, so it can increase the concentration of uric acid in the blood. For high uric acid, doctors will often prescribe baking soda. But it is important to know that its action is not to neutralize uric acid, but to alkalize the urine. This is because gout attacks are caused by uric acid crystals. If the PH value in the urine is lower, then the harder it is to get the uric acid crystalline salts out of the body. Only by alkalizing the urine can we reduce the production of deposits of urate crystals and promote the excretion of uric acid through the urine. Therefore, baking soda does not neutralize uric acid, but promotes uric acid excretion, which is good for gout prevention, but for lowering uric acid, the effect is still limited. The main organ that excretes uric acid is the kidneys. If the efficiency of uric acid excretion by kidney can be increased, the blood uric acid concentration can be effectively reduced. However, being excreted by the kidneys does not mean that uric acid is excreted out of the body. If the kidneys “fetch out” too much uric acid in a short period of time, more than the solubility of urine, they will instead be deposited in the kidneys, causing kidney stones. Taking baking soda tablets can alkalize the urine so that it can carry more uric acid salts out of the body, avoiding the risk of kidney and urinary tract stones. For patients with high uric acid, it is important to pay attention while taking medication and drink more water to increase urination, which is also beneficial to lower uric acid.