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A 21-year-old female asked:

Past 3 days my urine colour changed to dark yellow in the mornings and gets lighter as i drink water rest of the day. am i dehydrated?

1 doctor answer1 doctor weighed in
Dr. Elden Rand
Cardiology 22 years experience
That pattern of darker yellow urine coloration which improves with water intake does seem consistent with dehydration. This is a link to a study done specifically to answer the question of using urine color to indicate hydration status: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4949298/. Essentially, they found a relationship between urine color and daily fluid intake. Best wishes.

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