Analysis:
Normal human urine is a light yellow, clear and transparent liquid. When people drink more water, the frequency and amount of urination will increase accordingly, and the urine will be very light yellow at this time. When drinking less water or sweating a lot, the frequency and amount of urination will be reduced accordingly, and the urine will be dark yellow at this time.
【 Clinical Significance 】 If urine is found to have obvious abnormal color during urination, it may indicate that there is something wrong with the urinary system. Please refer to the following tips.
1. pink or red urine: any urine in the form of pale pink clouds, meat washing water samples and blood clots visible to the naked eye is collectively called gross hematuria, that is, urine contains a large number of red blood cells. If the appearance of urine has not changed much, hematuria that can only be seen under a microscope is called microscopic hematuria. Hematuria is more common in renal tuberculosis, renal tumor, kidney calculi's disease, urinary calculi, acute glomerulonephritis, pyelonephritis and cystitis. It is easy for female patients to mix menstrual blood with urine during menstruation, resulting in false "hematuria", so it is not appropriate to leave urine for testing during menstruation. In addition, alkaline urine is red when taking phenolphthalein, rhubarb and other drugs.
2. Strong tea-like or soy sauce-colored urine: mostly hemoglobinuria, which is common in blood transfusion reaction of silkworm bean disease, paroxysmal nocturnal hemoglobinuria and blood group incompatibility.
3. Dark yellow urine: soybean oil color, easy to hang on the container wall when pouring out from the container, not easy to pour out, foam after shock, bilirubin urine, more common in jaundice hepatitis; It was also found in acid urine of patients taking vitamin B 12, metronidazole and rhubarb.
4. Milky urine: milky white like milk, called chyluria. Caused by multiple lymphatic obstruction. It is common in filariasis, and it can also cause lymphatic circulation disorder around the kidney due to tuberculosis, tumor, chest and abdomen trauma, etc., which leads to chylous fluid entering the urine when the renal pelvis or ureter ruptures.
5. White or turbid urine: When some special vegetables and foods contain more phosphate or carbonate, especially in cold weather, white turbidity or precipitation may appear in urine, but the turbidity and precipitation disappear after heating and adding acid, which is not a big problem. However, concentrated urine and bacterial urine contain a lot of inflammatory exudates such as concentrated cells or bacteria, and fresh urine becomes cloudy and white, and its turbidity will not disappear after heating and adding acid. This kind of urine is more common in urinary tract infection, pyelonephritis, cystitis and so on.
6. Blue-green urine: it is more common after taking drugs such as methylene blue, indomethacin and aminophylline.
Note: English-Chinese correspondence of urine color printed by urine analyzer:
LT: shallow; DK: deep;
Yellow: yellow; Orange orange; Brown: brown;
Red: red; Blue: blue; Green: green