The normal color of cat urine should be clear and light yellow. If the cat's urine appears dark brown, it is recommended that the owner take the cat to the pet hospital for systemic examination as soon as possible, especially kidney and hematological examinations.

Because usually dark brown urine indicates that the cat may suffer from severe kidney disease or systemic hemolysis. Both diseases will endanger the cat's life safety in a short period of time, so it is recommended to seek medical treatment as soon as possible.

In addition, when cats eat onions, leeks, onions and other foods, it will cause systemic hemolysis and lead to hematuria, which will also make the urine dark brown. At this time, you have to go to the hospital for detoxification and drug treatment.