This must be the reasons why a person's urine may turn rust-colored, including: 1. Dehydration: When a person does not drink enough water, their urine becomes more concentrated, which can cause it to appear darker and more orange. 2. Medications: Certain medications, such as rifampin and phenazopyridine, can cause urine to turn reddish-brown or orange. 3. Liver problems: Liver damage or disease can cause bilirubin, a yellowish-brown pigment, to build up in the blood and make its way into the urine, turning it a rust color. 4. Blood in urine: If there is blood in a person's urine, it can make it appear rust-colored.
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