Why have I not passed urine for 12 hours?

Answered by Stephen Mosley

I’m not a doctor, but I can try to provide some general information based on what I know. If you haven’t passed urine for 12 hours, it could be a cause for concern. There are several potential reasons for this, and it’s important to consult a healthcare professional for a proper diagnosis and treatment.

One possible reason for not passing urine for 12 hours could be dehydration. When you’re dehydrated, your body tries to conserve water by reducing urine production. This can happen if you’re not drinking enough fluids or if you’re losing excessive amounts of fluids through sweating, diarrhea, vomiting, or other illnesses. Dehydration can have various symptoms, including thirst, dry mouth, dizziness, fatigue, and dark-colored urine. If you suspect dehydration, it’s essential to rehydrate by drinking plenty of fluids, preferably water or electrolyte-rich beverages.

Another potential cause could be a urinary tract obstruction. This occurs when something blocks the normal flow of urine, preventing it from being eliminated from the body. Common causes of urinary tract obstructions include kidney stones, tumors, enlarged prostate in men, or urinary tract infections. Along with not passing urine, you may experience abdominal pain, lower back pain, frequent urge to urinate, or blood in the urine. If you suspect a urinary tract obstruction, it’s important to seek medical attention promptly.

Certain medications can also affect urine production. Some drugs can cause a decrease in urine output as a side effect. If you’re taking any medications and notice a significant decrease in urine output, you should consult your healthcare provider to determine if this could be a possible cause.

In some cases, not passing urine for 12 hours could be a sign of a more serious underlying condition, such as acute kidney injury or chronic kidney disease. These conditions can have various causes, including infections, autoimmune disorders, high blood pressure, or diabetes. Along with decreased urine output, other symptoms may include swelling in the legs or face, fatigue, nausea, and changes in urination patterns. If you suspect kidney-related issues, it’s crucial to seek medical attention for proper evaluation and management.

It’s worth mentioning that individual experiences may vary, and it’s always best to consult a healthcare professional for an accurate diagnosis. They will be able to evaluate your specific situation, take into account your medical history, and conduct any necessary tests to determine the underlying cause of not passing urine for 12 hours.