What Is Your Urine Trying to Tell You?

I realize that it may seem strange to be reading a posting about urine. However, last week I wrote about urinary tract infections (which we know are common both in women and in people who have diabetes), so I think this week’s topic is relevant. Also, the color, smell, and consistency of your urine can give you and your doctor helpful information about what might be going on in your body.

Historically, looking at urine has been a way for doctors to gauge a person’s health, especially before other types of testing were available. If you’ve had diabetes for a long time or know someone who has, you’ll know that urine testing was a way to figure out how well controlled (or uncontrolled) a persons’ diabetes was — this was done in the days before blood glucose meters were available. Now, of course, we have more sophisticated tools to convey glucose information. But urine still has its place.


What is urine?
Urine is a waste product that contains breakdown products from food, drinks, medicines, cosmetics, environmental contaminants, and by-products from metabolism and bacteria. Amazingly, urine contains more than 3,000 compounds — much more than what’s found in other body fluids, like saliva or cerebrospinal fluid. The kidneys do a remarkable job of filtering and concentrating to help get these compounds out of the body (you can understand why keeping your kidneys healthy is so important). So, what is your urine telling you?

If your urine is…
Bright yellow. This may look alarming, especially when your urine seems to be glowing in the dark. But don’t worry — the bright yellow color is likely due to vitamins, specifically, B vitamins and beta carotene.

Green or blue. Green or blue urine seems like something straight out of a science fiction movie, but the color is very likely due to certain medicines that you’re taking, such as amitriptyline, indomethacin (brand name Indocin), or propofol (Diprivan). Your urine might also be green or blue due to food dyes or, possibly, a urinary tract infection (UTI).

Orange. Certain medications, like rifampin, sulfasalazine (Azulfidine), and phenazopyridine (Pyridium, used to treat UTIs), laxatives, and some chemotherapy drugs can turn your urine orange. Orange urine may also be a sign of liver problems or dehydration.

Brown. Brown or tea-colored urine can result from antimalarial drugs, certain antibiotics, and laxatives that contain senna or cascara. Fava beans, rhubarb, and aloe can also darken your urine, as can some kidney and liver disorders, such as hepatitis and cirrhosis.

Red or pink. Red or pink urine can be a sign of something serious…or not. Red urine may be due to the presence of blood, and that’s always somewhat concerning. Blood in the urine may be a sign of a UTI, enlarged prostate, a tumor, kidney or bladder stones, menstruation, or injury to the urinary tract. It can also occur if you take blood-thinning medicine or aspirin. Less alarming causes of red urine are beets, berries, and rhubarb.

Cloudy. Cloudy urine can result from a UTI, vaginal infection, or dehydration. If the urine is more milky in appearance, that may be due to the presence of bacteria, mucus, fat, or red or white blood cells.

By the way, “healthy” urine should be pale yellow or straw-colored in appearance.

If your urine smells…
Funny. It’s most likely due to something that you ate. Urine usually doesn’t have a strong odor. But certain foods, such as asparagus, can give it a strong smell thanks to sulfur compounds. Medicines can impart an odor, too. An ammonia-type of smell may be a sign that you’re dehydrated. And a bacterial infection can give your urine a foul odor. Less common causes of funny-smelling urine are rare genetic conditions.

Sweet. Sweet-smelling urine typically indicates the presence of sugar or glucose. Of course, having diabetes increases the chances of spilling glucose into the urine if blood glucose levels are too high. The kidneys will make their best effort to get rid of excess glucose once blood glucose levels climb above 180 mg/dl. In people with Type 1 diabetes and some people with Type 2 who take insulin, sweet or fruity-smelling urine may be due to ketones. Ketones are formed when the body burns fat for fuel, and this can occur when there isn’t enough insulin to move glucose into cells for energy. Urine ketones can be measured using ketone sticks that are available in your pharmacy.

What to do
Urine can look and smell funny for a number of reasons. Most of them are relatively harmless, but if you notice any new changes in your urine or are worried about the appearance or smell, the best thing to do is call your doctor. Also, keep in mind that you may be more likely to have changes in your urine if you:

• Are older
• Are female
• Have a family history of kidney stones or kidney disease
• Do strenuous exercise

  • tiredoldman56

    Glad to know this info. Have heard something like this awhile back

  • jim snell


    Thank you for excellent blog and data.

  • L J Griner

    I’ve always been a firm believer in that you have to monitor what comes out just as much as what goes in. Your body’s waste can tell you a lot about your current health. Sometimes a change there is the first or only symptom of something being wrong. Now that the younger generation can read it here, maybe we “old folks” won’t get the “old wive’s tale” reaction when we bring it up! Thank you for posting the article. :)

  • Vicill

    Good info … I’ve been getting an odd odour from my urine lately and occasionally .. can’t quite nail it down, but I think it’s related to my supplements, just can’t figure which one .. no change in colour .. just a musty, nasty odour …… I am an older(59) T1 26yrs.

  • Bruce

    Thanks for this re-assuring post. I take a number of vitamins, including B vitamins and I exercise fairly hard, so I periodically see the bright colored urine you mentioned.

  • Merle

    This information is great to know as my urine has been different smells lately. Sometimes it is a strong bad oror and other times it smells like something that I aet.

  • Deb

    My urine is clear during the day but first thing in the morning it’s a dark orangey color. I assume it’s from not drinking anything for about 10 hours.

  • acampbell

    Hi Deb,

    Your urine can be a dark yellow or orangey color if you’re somewhat dehydrated (meaning, not drinking anything for 10 hours or so). If, as you say, your urine then becomes clear in color, chances are, a lack of fluids is the cause.

  • vivian musico

    Thank you for an in depth description of descriotion of normal and abnormal urine. I have an opposite occurence of what was explained. My urine is clear in the morning, and is light orange later in the morning. No discomfort. Two weeks ago, uti and put on nitrifurontin. Off antibiotics fir oneweek . Please comment. Thank you.

    • lily


      • JOVI


  • A. Campbell

    Hi vivian,

    I wonder if the orange color is a residual effect of your antibiotics or an indication that your UTI hasn’t completely cleared up. I’d suggest giving your doctor a call to find out what’s going on.

  • Darrell Darrell

    My has been smelling sweet for the past month so I tasted it and its real sweet, I wouldn’t even mind throwing some ice in a glass and drinking it.

    • Lawrence Daniels

      Aaaaaah,….. Nooooooo! Dooooon’t doooooo iiiiittt$

  • Tina brown

    My urine is has been a light color for awhile now but back then when I use to eat tons of sweets it was a dark yellow goldish color

  • GuitarJam

    my urine is foamy and make a hissing sound. wtf is going on