Urine color generally ranges from a pale-yellow color to deep amber. This coloring is primarily caused by the pigment urochrome, also known as urobilin.
Whether your urine is diluted by water or in a more concentrated form determines the appearance of the pigment. The more water you drink, and the more hydrated you become, the lighter the pigment in your urine.
When everything is healthy and normal, your urine should be pale yellow to gold. It is helpful to regularly pay attention to your urination to see what your normal color is, so that you can tell when it is different.
Sometimes changes to a person’s urine are temporary and harmless, such as the result of eating certain foods, taking medications or vitamins. But changes can also be a sign of a more serious underlying medical condition.
Anytime you see blood in your urine or notice it is brown or orange, it is time to seek medical attention and make an appointment with your primary care provider. This is especially true if the change lasts more than a day, or if it comes with back or side pain, fever, burning with urinating, vomiting, discharge or thirst.
Red or pink urine can be a sign of a mild or serious health issue. The big concern with any sort of pink or red urine is bleeding, called hematuria. This could signal an easy-to-treat urinary tract infection (UTI) or kidney stone—or something more serious, such as urinary tract cancer. If there is obvious blood in the urine, you should contact a healthcare provider.
Brown color in urination could mean you have severe dehydration or a liver condition. If you have melanoma skin cancer, your body may be adding skin pigment in circulation that’s winding up in the liquid waste. Brown urine could be misinterpreted as a very dark red, which could be caused by blood. Brown coloration could also be caused by large consumption of fava beans, aloe or rhubarb. Medications that cause your discharge to appear brown include metronidazole (treats infections) or chloroquine (prevent malaria)
A green or blue color in the urine is not very common. It could be caused by a rare genetic disease or a bacteria causing a urinary tract infection. But most likely it is caused by medication or food dye in something you ate
Purple is the only color that has a syndrome named after it, purple urine bag syndrome. This occurs in rare cases when using a urinary catheter where the patient also has a co-existing urinary tract infection.