Most people do not pay attention to the urine color when urinating. In fact, whether the color of urine is normal or not can reflect the health status of the body.
Urine is composed of different substances such as urinary pigment, urobilin, and urinary pigment. These ingredients are all products of metabolism in the body, and their production and metabolism rates are in a certain proportion. Under normal circumstances, urine will maintain a certain concentration, and the color of normal urine ranges from light yellow to dark brown.
The color of urine is also related to the amount of water a person consumes. For example, when a person consumes a lot of water, the color will become lighter, and vice versa. In addition, certain foods, pigments, drugs and vitamins may also affect the color of urine. The more clinically important urine color changes are:
1. Red urine color
Red urine is usually caused by food or bleeding. Women should consider whether it is contaminated by menstrual blood. Otherwise, they need to use urine test strips to check whether the red color is due to the presence of blood-related substances.
Red urine caused by bleeding may be hematuria. If hematuria is caused by kidney stones, it is often accompanied by symptoms of renal colic; if hematuria is not accompanied by pain, it may be caused by bleeding from urethral tumors. Sometimes trauma to the kidneys causes massive bleeding, and coagulated blood clots may block the ureters, causing symptoms of renal colic like stones.
2. Green-brown or yellow urine color
Green-brown or yellow is mostly related to bile pigments. In addition, highly concentrated urine will also appear dark brown, and the two are easily confused. During the examination, urine can be held in a container, and the urine should be shaken vigorously after sealing. Urine containing bilirubin will have yellow foam, and high-concentration urine will have white foam. Green urine may also occur after consuming certain Chinese medicines. If the urine is dark yellow, it may be a sign of jaundice.
The urobilin in orange-red or orange-brown urine is originally colorless, but will turn into dark yellow or orange when exposed to acidic urine or light.
3. Dark brown or black urine color
Dark brown or black acidic urine containing heme will turn into denatured heme and become dark brown after being left for a period of time. Black urine may be a genetic disease of metabolic abnormalities.
Different physiological conditions will produce urine of different colors. Careful observation of the changes can be used as an indicator of physical health. If you find that the urine color is different, you should have a physical examination as soon as possible to find out the problem.
Disclaimer: The suggestions and tips given in the article are for general information purposes only and should not be taken as professional medical advice.
