Which is an indicator of potential dehydration?

Dark urine serves as a significant indicator of potential dehydration. When the body is dehydrated, the kidneys conserve water, leading to concentrated urine, which often appears darker in color due to higher levels of waste products. This is a physiological response aiming to maintain homeostasis by retaining as much fluid as possible when the body senses a lack of available water.

In contrast, frequent urination typically suggests good hydration levels because the body is effectively processing and filtering fluids. Edema, or swelling due to fluid accumulation, can be associated with conditions such as heart failure or kidney disease, rather than dehydration. Healthy skin elasticity is a sign of proper hydration, as well-hydrated skin maintains its shape and resilience. Therefore, the presence of dark urine is a strong indication of dehydration, guiding healthcare professionals to assess fluid intake and treatment needs.