Bubbles in urine that dissipate quickly can be considered to be the result of recent low water intake, high protein intake, or standing position during urination. In general, there may be a small amount of foam in the urine when urinating, and the foam quickly dissipated, generally do not consider pathological conditions, may be due to the recent drinking less water led to urine concentration, or recent diet structure in the protein content is higher as well as urinating in a standing position when urinating, the urine impact led to the production of foam. In addition, urinary tract infections, acute glomerulonephritis and other pathologic conditions may also produce a large amount of proteinuria, resulting in more foam in the urine, but the foam usually does not dissipate easily, so foamy urine due to pathologic conditions is not considered here. If accompanied by other discomforts, it is recommended to go to the hospital for further examination to clarify the cause.