What should you know about dark reddish urine color?

Urine may look darker when it is concentrated after low fluid intake or fluid loss from sweating, fever, vomiting, or diarrhoea. Redness can come from blood in the urinary tract, which may be accompanied by stinging, urgency, frequent urination, a dull ache, or side pain. Dark orange-brown urine with yellow eyes or pale stools points to a different group of possibilities involving bile pigments. Some medicines, supplements, and foods alter colour without causing urinary disease. A colour description cannot determine the cause, and a dark reddish shade does not mean that a serious diagnosis is certain. You can compare this explanation with [Dark Urine](/symptoms/dark-urine/) and [Dehydration](/conditions/dehydration/).

Write down the shade, when it appeared, and whether it follows exercise, heat, illness, or a new product. Drink your usual fluids if you have no fluid restriction and watch whether the urine becomes lighter. Contact a clinician if the change continues, returns, or is accompanied by urinary discomfort. A urine test can look for blood, infection, and other findings; blood tests or imaging may be considered depending on the result.

Go for urgent assessment if there is inability to pass urine, clots, heavy visible bleeding, severe pain in the side or abdomen, fainting, confusion, high fever, or repeated vomiting. Seek prompt advice for yellowing skin, pale stools, new swelling, or a noticeable fall in urine output. Symptoms after substantial heat exposure, such as dizziness, headache, nausea, or weakness, may fit [Heat Exhaustion](/conditions/heat-exhaustion/).

Ask whether your symptoms call for urine microscopy or culture, whether a medicine or supplement is relevant, and what follow-up is needed if the first sample is normal. Share any pain, fever, fluid loss, exercise, and changes in urine volume.