Dark urine is often more serious and may be due to massive hematuria, hemoglobinuria, myoglobinuria, and so on.
Normal urine is light yellow or colorless and transparent, the appearance of dark urine may be hemoglobinuria, myoglobinuria or a large amount of hematuria, usually the disease is relatively more serious.
For example, acute hemolytic disease or imported blood type does not match the blood caused by a large amount of hemoglobin in the urine, can make the urine soy sauce color or even black. Excessive exercise, trauma, extrusion and other causes of myoglobin urine can be strong tea color or even black. Acute and chronic nephritis, urinary tract stones, tumors and other causes of large amounts of hematuria can also make the urine black.
No matter which of the above diseases will seriously affect the patient’s kidneys or general health, it is necessary to immediately seek medical attention, improve the urine routine, liver and kidney function, urinary tract ultrasound, etc., timely diagnosis and treatment.