Urinary epithelial cells + can be seen in physiological conditions, urinary tract infections, urinary stones and tumors and other conditions, it is recommended to go to the hospital for further examination to clarify the cause. 1. Physiological conditions: Because there are a large number of epithelial cells covering the mucous membrane of the entire urinary system from the kidneys to the urethral orifice, there may be a small number of epithelial cells shedding and regeneration under normal conditions or under strenuous physical exercise, resulting in the presence of some epithelial cells in the urine, which does not need to be treated. 2. Urinary tract infection: when not paying attention to personal hygiene, not timely cleaning or the existence of unclean sex, etc., may cause urinary tract infection, inflammation stimulation will make the epithelial cells easier to shed, resulting in an increase in epithelial cells in the urine. 3. Stones, tumors: when there are ureteral stones, bladder tumors and other urinary stones and tumors, it will lead to the mucous membrane is friction, extrusion and other conditions, resulting in increased epithelial cell shedding. Therefore, it is recommended to go to the hospital for further examination to clarify the cause of the disease and timely treatment.