Urine, also known as "pee," "piss," or "number #1," removes waste from the body. Blood transports nutrients and waste to and from cells. Waste is filtered from your blood by your kidneys, and the resulting filtered material is urine. Typically, urine is clear, composed of water and water-soluble waste. However, urine may contain non-water soluble particulates -- cells, crystals, protein globs, bacteria and yeast. These particulates are visible by microscopic examination after a sample of urine has been allowed to settle.
Red, White and Epithelial Cells
Both white and red blood cells are part of your circulatory system. Blood cells transport food and oxygen to all parts of the body. White cells guard the body from infection and epithelial cells cover your body, inside and out. Higher than normal levels of white cells indicate the possibility of an infection, while elevated red cells can be a sign of blood disorder, bladder cancer or kidney disease. The presence of epithelial cells in your pee can be a sign of a tumor.
Casts, Cells and Proteins Stuck Together
Protein globs in your "number one" are known as "casts." Casts are formed in the kidney and are composed of cells -- red, white or epithelial and protein. The protein is released from the kidney and combine with the cell to form a cast. The type of cast provides the doctor with information about infections, diseases or cancer that may be present in your body.
Crystals form in urine when not enough water is consumed. Salts build up and precipitate to form crystals. A few crystals in pee are normal, but above-normal amounts of crystals can be an indicator of a disease, poisoning, or side effect pf a drug. Furthermore, crystal formation in urine is often an indication of the potential to form kidney and bladder stones. Just remember that drinking more water is good for you and your pee.
Bacterial and Yeast Cells in Urine
Urine can contain several types of bacteria and yeast that originate from inside and outside your body as well as the surrounding environment. They inhabit several parts of your inner body, even transported by the blood to the kidney and filtered into your pee. High levels of bacteria or yeast in your urine is often an indication of an infection. The source of the infection can be from inside your body or outside, as in a sexually transmitted disease.
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