Determination and significance of residual urine volume

Normal residual urine volume refers to urine remaining in the bladder after urination. Residual urine volume measurement, under normal circumstances, residual urine volume should not exceed 50 ml, less than 5 ml, if more than 50 ml state, or is more than 100 ml, consider pathological caused. After this method of measurement, it can be well known whether there is a disease, such as whether it shows urinary incontinence, or shows bladder obstruction. In such a state, it is considered that there are stones, which needs to be paid enough attention. Or do relevant examinations to see which factors are targeted. If it is caused by stones, further examinations are needed.