What are common types of crystals found in urine?

What are common types of crystals found in urine?

Types of crystals that a lab tech might see in your urine include:

• Ammonium biurate.
• Bilirubin.
• Calcium oxalate or calcium phosphate.
• Cystine.
• Hippuric acid.
• Leucine.
• Struvite (magnesium ammonium phosphate).
• Tyrosine.
• Uric acid.
• Xanthine.

The laboratory test can identify the type of crystals by the shape of the crystals under a microscope. Some of the crystals may have no identifiable shape (amorphous).

The pH (acidity) of your urine can contribute to the type of crystals that happen.