How many times is normal for men to urinate at night

Generally, elderly people are more likely to have frequent urination and polyuria, but the fact that it is rare in young people does not mean that it does not exist. Young men who have frequent urination and polyuria should be alert to prostatic hyperplasia or prostatic hyperplasia in addition to kidney problems. So, how many times is it normal for men to urinate frequently at night? Let's have a simple understanding and understanding of this issue. I hope the following points will be helpful to everyone!

Under normal circumstances, daytime urination exceeds nighttime urination (20:00 to 8:00 the next day), and the proportion is about 2:1. With age, the proportion of nighttime urination gradually increases. When people are around 60 years old, the ratio of daytime urination to nighttime urination is about 1:1. Normal people urinate 2-3 times at night, and the total nighttime urination averages 500ml (300-800ml). If nighttime urination exceeds or is equal to daytime urination, and the frequency of urination increases, especially in the second half of the night, it is called nighttime frequent urination. It should be noted that nighttime frequent urination focuses on the total urine output at night, not the frequency of nighttime urination. Ordinary people may occasionally urinate frequently and urinate frequently, especially when drinking more water before going to bed. This is normal; if it is habitual frequent urination and urination frequently, it is abnormal.

The causes of frequent urination can be roughly divided into three categories: frequent urination at night due to renal insufficiency, drainage duct, and neurological.

1. Frequent urination at night due to renal insufficiency: It is common in hypertension-induced renal damage, renal arteriosclerosis in the elderly, azotemia caused by various chronic kidney diseases, hypokalemic nephropathy (such as primary aldosteronism, etc.) and primary or secondary tubular-interstitial disease (such as renal tubular metabolic acidosis), etc. Young people with frequent urination must go to the hospital for outpatient examination, such as routine urine tests, renal function tests, and accurate blood pressure measurements.

2. Drainage: It is common in heart failure and edema due to various reasons or pleural effusion, ascites, and the body has excessive water retention. After lying in bed at night, the blood circulation is improved, and the retained water is easy to return to the blood. In addition, the kidney is lowered when lying flat, and the blood volume increases, so the urine volume increases.

3. Neurotic frequent urination at night: due to tension and anxiety, such as bed-wetting, people often have frequent protective urination at night, which may become a habit over time. However, those who have increased urination frequency at night without increased urination do not fall into the category of frequent urination or polyuria.