What is the reason for the dark brown urine

The reasons why urine color is dark like strong tea are as follows: First, when the hemoglobin content in urine is relatively high, it will cause urine color like strong tea. This is because due to rhabdomyolysis, a large amount of hemoglobin is filtered out of the kidneys. Due to the high hemoglobin content in urine, it will cause changes in urine color, and patients will generally show muscle soreness. Second, the amount of drinking water is small or a lot of sweating after exercise, resulting in a large loss of water in the body, urine production will also be reduced accordingly, so the content of various impurities in the urine is relatively high, thus causing the urine color to be darker, like the color of strong tea, this situation generally increases the amount of drinking water, urine color will become lighter.