Myoglobinuria
| Myoglobinuria | |
|---|---|
| Urine from a person with rhabdomyolysis showing the characteristic brown discoloration as a result of myoglobinuria | |
| Specialty | Nephrology | 
Myoglobinuria is the presence of myoglobin in the urine, which usually results from rhabdomyolysis or muscle injury. Myoglobin is present in muscle cells as a reserve of oxygen.