Dark urine is an indication of concentrated urine and dehydration. It may also occur due to the presence of harmful waste products in the body that can cause conditions such as liver disease, according to Healthline.
Urine removes waste products and excess water from the body. The urine color mainly depends on the concentration. Dark urine is an indication that a person is not drinking enough fluid. An insufficient amount of water makes the body to hold water, making the urine becomes darker and concentrated. Pale urine is an indication of a sufficient amount of water in the body, states WebMD.
Taking drugs such as metronidazole, methocarbamol, primaquine and chloroquine can cause dark urine. Other causes include kidney and liver disorders, muscle injury due to exercise and eating aloe, rhubarb or beans in large amounts. A family history of kidney disease and vigorous exercise such as running can result in a change of urine color, explains Mayo Clinic.
Conditions that accompany urine color change include bladder stones, pancreatic cancer, rhabdomyolysis and hepatitis. Patients should report any change in their urine color, particularly due to taking certain medications or foods. During diagnosis, the doctor asks patients about their medical history and symptoms and then carries physical examination, notes Healthline.