Dark urine is not always a sign of illness. Daily fluctuation in the color and character of urine is expected in healthy individuals.
When dark urine results from a medical condition, it is often seen in conjunction with other symptoms.
In the majority of cases where dark urine is a symptom of an underlying condition, dark urine is rarely the only condition present. It almost always occurs in conjunction with other symptoms related to the condition.
If dark urine is accompanied by certain symptoms (blood in the urine, straining to urinate), immediate medical attention should be sought to determine the cause. Unproductive attempts to urinate are always a medical emergency.
Dark urine can be a normal fluctuation in a healthy cat. In other cases, it can be the result of other conditions.
All healthy cats are expected to have fluctuation in the color of urine throughout the day. The presentation of dark urine can vary in a number of ways:
After a medical history and physical examination, diagnostics depend on the associated symptoms and suspected causes and can include;
Urinalysis is necessary for identifying the substance causing the urine to appear dark.
Urine can be fully characterized after testing by the presence of hemoglobin, myoglobin, blood, bile, or other pigments affecting the color of the urine.
Treatment varies depending on the root cause and can include;
Dark urine is not a symptom which can easily be mistaken for another symptom, but it does not always indicate an illness. The color of urine varies in a healthy cat.