Understanding Acidic Urine: Causes, Symptoms & When to See a Doctor

The normal pH range of human urine is 4.5 to 8.0. Values below 4.5 indicate acidosis, while values above 8.0 indicate alkalosis. Acidosis can occur for a number of reasons, including diabetic ketoacidosis, renal tubular acidosis, and severe diarrhea. Alkalosis can occur for a number of reasons, including vomiting, diuretic use, and chronic respiratory alkalosis.

Acidic urine may indicate a medical condition, such as:

- Kidney stones. Acidic urine can contribute to the formation of kidney stones.

- Urinary tract infection (UTI). Bacteria that cause UTIs can produce acids that make the urine more acidic.

- Metabolic acidosis. This condition occurs when the body produces too much acid or loses too much bicarbonate.

- Diarrhea. Severe diarrhea can cause the body to lose too much bicarbonate, leading to metabolic acidosis.

- Certain medications. Some medications, such as aspirin and vitamin C, can make the urine more acidic.

If you have acidic urine, it is important to see a doctor to determine the cause and to get treatment if necessary.