The authors cited ulcerative colitis, a bowel condition, as the cause of the green color. Medical journals often publish case reports, such as this 1999 study of an unusual instance of green urine. Methylene blue, a dye that has also been used as a drug, can produce a blue-green color to the urine.dyes, including indigo-blue, indigo carmine, used in kidney tests, carbolic acid, and flavin derivatives.other drugs, including the antidepressant amitriptyline, cimetidine, which reduces stomach acid, and the painkiller indomethacin. ![]() drugs and other compounds containing phenol, such as promethazine, used for allergy and nausea, and propofol, a drug used in anesthetics.The urine can turn green because of the following: sennoside laxatives, such as Senna-Lax and Senokot)Ī condition called porphyria causes urine to appear deep purple.phenytoin, or Dilantin, an epilepsy drug.antibiotics, such as metronidazole (Flagyl) and nitrofurantoin (Furadantin).antipsychotic drugs, such as chlorpromazine (Thorazine) and thioridazine (Mellaril).Harmless causes of redness in the urine include beetroot or blackberries in the diet. Hemoglobinuria, a blood condition, can also cause red urine, as can myoglobinuria, which involves a waste product of the breakdown of muscles. See a doctor about red urine, as hematuria can be serious. Red coloring in the urine has a number of causes.īlood in the urine, known as hematuria, is a possible cause of red urine. Vitamin C, blackberries, beetroot, and rhubarb can also have this effect. Some laxatives and chemotherapy agents can also color the urine orange.ĭietary factors behind orange urine include a high intake of carrots, as a substance called carotene that these vegetables contain can impact urine color. Image credit: Stephen Kelly, 2019 Orange urineĬertain drugs and medications can lead to orange urine.Įxamples include the antibiotic rifampicin and the pain-relief drug phenazopyridine. While bright yellow urine does not necessarily indicate dangerous health issues, it is important to keep a close eye on the color of urine. The urochrome from this process ends up in the urine as a yellow color.ĭarker shades of yellow suggest that an individual may be dehydrated and needs water. Red blood cells are renewed in their millions every day, so the body needs to break down old cells. ![]() Hemoglobin is the protein in red blood cells that enables oxygen to travel around the body. ![]() The yellow color in balanced urine comes from urochrome, a waste product that comes from the breakdown of hemoglobin. What gives urine its healthy yellow color? Urine color is also a reliable way to monitor hydration levels during exercise. People use the yellow in urine to indicate fluid balance in the body. This also happens if fluid is lost by other means, such as sweating. The urine darkens as the concetration increases, because the body takes in less fluid. Concentration refers the proportion of waste products to water. The yellow color darkens as the concentration of the urine increases. Taking B-vitamin supplements can lead to urine of this color. Share on Pinterest An excess of B-vitamins can cause bright yellow urine.īright yellow urine is a sign of excess B-vitamins in the body, including B-2 and B-12, although this condition is harmless.
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