The most common cause of blue urine is a food dye called methylene blue. This dye is found in some medicines, candies and mouthwashes. Methylene blue can turn urine blue, green or turquoise. This discoloration is usually harmless and disappears on its own within a few days.
Other possible causes of blue urine include
Urinary tract infections: Some bacteria can turn urine blue or green.
Hereditary diseases: In rare cases, blue urine can be a symptom of inherited diseases such as porphyria or alkaptonuria.
Certain medications: Some medications used during cystoscopic procedures can turn urine blue.
If you have blue urine, it is important to see a doctor to address your concerns. The doctor can determine the underlying cause by performing a urinalysis and other tests.
If you have blue urine and are also experiencing the following symptoms, it is important to seek urgent medical attention:
Abdominal pain
Back pain
Nausea and vomiting
Fire
Bloody urine
Blue urine is not always a cause for concern. However, it is important to see a doctor to rule out an underlying medical problem
