Diseases and conditionsKidney & Urinary tractMedical Laboratory

Urine Color: What Does It Mean?

Urine Color, which is normally yellow, varies depending on some factors such as the amount of water, certain medications and foods, and underlying medical conditions. In this article, we will discuss the normal range of urine colors, what different colors indicate, and the impact of medications on urine color.

Normal Urine Color Range:

The normal color of urine is yellow, and the degree of yellowing varies based on the amount of urochrome and water in the urine. The more water there is, the lighter the color will be. The normal range of urine colors is from pale yellow to dark yellow.

Normal ColorDescription
YellowThe normal color of urine ranges from pale yellow to dark yellow, as a result of a pigment called urochrome.

Colors of Urine Indicating a Medical Condition:

Here are some colors of urine that may indicate an underlying medical condition:

  1. Cloudy or Foamy Urine: Cloudy or foamy urine may indicate urinary tract infections, chronic diseases, kidney diseases, or dehydration.
  2. Dark Brown Urine: Dark brown urine can result from eating certain foods, such as beans and rhubarb, and from taking certain medications, including metronidazole and nitrofurantoin.
  3. Red or Pink Urine: Red or pink urine may indicate the presence of blood in the urine, which is a symptom of hematuria. It may also result from eating certain fruits like beets, rhubarb, and berries.
  4. Orange Urine: Orange urine can result from dehydration or bile diseases caused by problems in the bile ducts or liver.
  5. Blue or Green Urine: Blue or green urine may result from consuming food dyes or certain medications, or from urinary tract infections caused by a bacterium called Pseudomonas.
Color ChangeCause
Clear, watery colorDrinking a large amount of water
Amber yellow to reddish yellowNormal, due to the presence of urochrome. Can also result from excess B vitamins in the bloodstream
Red or pinkEating fruits with pink tints (such as beets, rhubarb, and berries) or pathological causes such as blood in the urine or serious diseases
OrangeDehydration or diseases of the bile ducts, liver, or refractory anemia
Blue or greenFood dyes or dyes used in medical tests, or urinary tract infections
Dark brownDehydration, consumption of certain foods or medications
Cloudy urineCan occur due to urinary tract infections, chronic diseases, kidney diseases, or dehydration
Cloudy urine with foam or bubblesCan be a symptom of serious health conditions such as Crohn’s disease or diverticulitis, and may also occur without a reason
DiseaseChanged ColorExplanation
HematuriaPink, Red, BrownPresence of red blood cells in urine
DehydrationDarker, ConcentratedNot enough fluid in the body (Little water, Diarrhea or Diseases)
Liver DiseaseDark Brown, Tea-coloredBile pigment in urine
RhabdomyolysisDark Brown, Reddish-brownMuscle damage releases muscle fibers into bloodstream
PorphyriaDark Purple, Dark BrownGenetic disorder of heme
Food or DrugsRed, Pink, Orange-red, Yellow-orangeColored foods and drugs can change the color of urine
Table showing health conditions that change urine color.

Impact of Medications on Urine Color:

Here are some examples of medications that can change the color:

  1. Iron-containing medicines
  2. Methocarbamol
  3. Flagyl metronidazole
  4. Chloroquine
  5. Methyldopa
  6. Amitriptyline and tryptizole
  7. Chlorzoxazone
  8. Rifampicin
  9. Sulfasalazine
  10. Warfarin
  11. Ibuprofen
  12. Phenytoin
Medications That Change Urine ColorDescription
Dark or light brown urineIron-containing medicines, methocarbamol, Flagyl (metronidazole), chloroquine, methyldopa
Blue-greenAmitriptyline and tryptizole tablets
Yellowish-orangeChlorzoxazone, rifampicin, sulfasalazine, warfarin
ScarletIbuprofen, phenytoin

SUMMARY

The color of urine varies based on different factors, including the amount of water, certain medications and foods, and underlying medical conditions. If you notice a change in the color of your urine, it is best to consult a doctor to rule out any underlying health issues.

Urine color changes can indicate health conditions, including infections, dehydration, liver issues, and side effects of medications. Normal color ranges from pale yellow to amber. Changes can also result from foods or dyes.

SOURCES

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