Why is my first urine of the day very dark orange and rusty in colour despite drinking plenty of water everyday and even a whole liter just before sleeping? Urine produced throughout the day is normal light yellow to transparent in colour but it's the day's first urine that concerns me.

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.