If there are many urine sediments, the possible causes are: 1, chronic infection in the urinary tract, when there will be some flocculent or feathery floaters in the urine, mostly due to the increased epithelial shedding after the infection, mixed with some white blood cells, bacterial metabolites and other formation. This condition is usually accompanied by urinary discomfort, such as frequent urination, urinary urgency, painful urination, and requires urinalysis to clarify; 2, salt urine or urinary stones after treatment, the discharge of small stones. Salt urine is mostly seen in the long-term urine concentration state, resulting in an increase in the solute concentration component in the urine, which can cause supersaturated precipitation and the formation of crystals. Patients with stones will have fine stone particles in their urine after treatment or after patients drink more water and exercise to remove stones; 3. Patients with hematuria or urinary tract tumors have more bleeding and can form blood clots in their urine, which are excreted along with the urine. In patients with tumors, the tumor itself bleeds or undergoes necrosis and other phenomena, which can cause some necrotic tissue to fall off, which can then cause increased precipitates in the urine, usually accompanied by a history of hematuria.