What kind of people are prone to urethral stones?1. Drink less water, often hold urine Do not hold urine, drink more urine to help bacteria, carcinogenic substances and stone prone substances quickly out of the body, reduce the chances of kidney and bladder victimization. On the contrary, it is easy to form stones. Guangdong Workers Hospital Surgery Zhao Man 2. often drink beer Some people believe that beer can be diuretic, can prevent the occurrence of urinary stones. In fact, the wort of brewing beer contains calcium, oxalic acid, uronic acid and purine nucleotides and other acidic substances, they are used in each other, can make the body of uric acid increased, become an important cause of kidney stones. 3. love to eat meat, animal offal control the intake of meat and animal offal, because the metabolism of meat produces uric acid, animal offal is high purine food, decomposition and metabolism will also produce high blood uric acid, and uric acid is the formation of stones. 4. 4. love salt Too salty diet will increase the workload of the kidneys, while salt and calcium have a synergistic effect in the body and can interfere with the metabolic process of drugs for the prevention and treatment of kidney stones. Salt intake should be less than 5 grams per day.5. Be careful with spinach According to statistics, more than 90% of stones contain calcium, and about 87.5% of people with calcium oxalate stones. If the amount of oxalate in food is too much and the urine is oversaturated with calcium oxalate, the extra calcium oxalate crystals may precipitate out of the urine and form stones. The highest oxalate content in food is spinach, which is one of the most commonly eaten vegetables.6. Drink milk before bedtime As milk contains more calcium, and most of the stones contain calcium salts. The most dangerous factor for stone formation is the sudden increase of calcium concentration in the urine for a short time. The peak of calcium elimination through the kidneys is 2 to 3 hours after drinking milk, so when you are sleeping, the urine is concentrated and calcium passes through the kidneys more, so it is easy to form stones. 7. Eat more sugar The concentration of calcium ions in the urine, oxalic acid and the acidity of urine will increase after taking sugar, and the increase of urine acidity can make calcium urate and calcium oxalate easy to precipitate and promote stone formation. 8. ～If the dinner is too late, when the peak of calcium excretion comes, people have already gone to bed and fallen asleep, so urine is retained in the ureter, bladder, urethra and other urinary tract, which cannot be discharged in time, resulting in an increase in calcium in urine, which is easily deposited to form small crystals, and over time, gradually expand to form stones. 9. The final metabolites in the body are alkaline, and uric acid is easily dissolved in alkaline urine, so it is easy to form stones if you do not like vegetables and fruits.