The kidneys are among the most vital organs in the human body, responsible for filtering blood, removing toxins, and maintaining internal balance. However, many people often overlook early warning signs that their kidneys may be in trouble. One of the simplest ways to detect abnormalities is by observing your morning urine. Below are two alarming signs related to urine color that could indicate early kidney damage — and if you notice them, you should see a doctor right away.

1. Dark brown or tea-colored urine

Normally, morning urine ranges from light yellow to dark yellow due to its concentration after a night's sleep. However, if your urine turns dark brown or tea-colored, it could be a sign that your kidneys aren't functioning properly. This color may be caused by hidden blood or the presence of myoglobin — a protein released when muscles are damaged and that the kidneys are unable to filter properly.

This condition may be associated with glomerulonephritis, acute tubular injury, or chronic kidney disease. While dark urine can also result from severe dehydration, if it persists for several days and is accompanied by fatigue, swelling in the limbs, or lower back pain, you should seek medical attention promptly to check your kidney function.

2. Reddish or pink urine – a sign of blood in the urine

Another serious sign is the presence of blood in the urine, giving it a reddish or pinkish hue. While this may occasionally be caused by eating certain foods like beets, if dietary causes are ruled out and the unusual color persists, it could be an early warning sign of kidney or urinary tract disorders.

Hematuria (blood in the urine) may indicate kidney stones, urinary tract infections, kidney infections, or more severe conditions such as kidney or bladder cancer. Especially if accompanied by symptoms such as burning during urination, frequent urination, or fever, these are warning signs you should never ignore.

Recommendations and Conclusion

Never take subtle changes in your urine lightly. The kidneys work silently, and symptoms usually only become apparent when the damage is already advanced. Observing your morning urine is a simple yet effective habit to detect early signs of health issues.

If you notice your urine consistently appearing dark brown or reddish over several days, it’s best to consult a nephrologist or urologist for urine tests, blood tests, and an ultrasound. Early diagnosis can help prevent complications and better preserve kidney function.