What can yellow or dark urine indicate?

Yellow or dark urine is most commonly associated with acute dehydration. When the body does not receive enough fluids, urine becomes more concentrated, leading to a deeper yellow or amber color due to higher levels of waste products in the urine. This concentration occurs because the kidneys are conserving water to maintain hydration and proper bodily function, resulting in less diluted urine.

While other factors, such as high protein intake, infection, and kidney stones, can also alter urine color, acute dehydration typically stands out due to its strong correlation with a noticeable change in urine color and is usually accompanied by other symptoms such as dryness, fatigue, and decreased urine output. Recognizing these signs can prompt individuals to increase fluid intake, addressing potential health concerns related to dehydration more effectively.