Urine Transparency. Freshly voided urine is clear and transparent. Cloudy urine may be caused by crystals, deposits, white cells, red cells, epithelial cells or fat globules.Further evaluation with centrifugation, microscopic examination, heating or with ether generally determines the cause of the turbidity.rine Transparency. Freshly voided urine is clear and transparent. Cloudy urine may be caused by crystals, deposits, white cells, red cells, epithelial cells or fat globules.