What causes yellow urine?

Yellow urine is usually caused by an increase in the concentration of bilirubin or urochrome in the urine. The following are some common causes: 1. Dehydration: Insufficient water intake leads to concentrated urine, resulting in a darker color. 2. Food and beverages: Consumption of pigmented foods (such as carrots, beets) or drinks (such as coffee, tea) may also cause yellow urine. 3. Medication effects: Certain medications, such as B vitamins and rifampin, can turn urine yellow. 4. Liver problems: Liver diseases such as hepatitis or cirrhosis may lead to abnormal excretion of bilirubin, causing it to appear in the urine and turn it dark yellow. 5. Biliary obstruction: When bile cannot drain normally, bilirubin flows back into the bloodstream, also causing yellow urine. 6. Certain diseases: Urinary tract infections, fever, hemolysis (excessive breakdown of red blood cells), and other conditions may also cause yellow urine. If yellow urine is accompanied by other symptoms such as fever, abdominal pain, frequent urination, urgency, or painful urination, prompt medical evaluation is advised.