What are the sediments in urine?

What Are the Sediments in Urine?

The sediments in urine can be crystals, stones, or purulent substances.

1. Crystals: Normal urine contains numerous crystals. Due to inadequate water intake by patients, causing salt oversaturation, crystals precipitate from the urine and settle at the bottom, forming white sediments such as urate crystals, calcium oxalate crystals, and calcium carbonate crystals.

2. Stones: If there are kidney stones or urinary system stones, but the stone diameters are relatively small, during urination, these stones may be expelled due to urine flushing, which can also lead to urine sedimentation. More severe cases may also be accompanied by abnormal symptoms such as low back pain and abdominal pain, typically requiring treatment by a doctor for stone removal.

3. Purulent Substances: In cases of urinary system infections such as purulent urethritis or renal abscess, there will be an increased amount of purulent secretions. During urination, purulent substances may fall into the urine. At this time, patients may also experience discomfort symptoms such as cloudy urine and painful urination. If there are other abnormal symptoms, it is recommended to cooperate with a doctor as soon as possible to undergo urine routine tests, urinary system CT scans, and other examination items to observe whether the internal condition is normal.