Can not help want to urinate that is frequent urination, may be too much water, mental stress and other physiological reasons related to diabetes, urethritis and other pathological reasons. 1. Physiological reasons: when people drink too much water can cause diuresis, resulting in frequent urination; in addition, the lowering of temperature, mental stress can also cause frequent urination; pregnant women due to fetal compression of the bladder can also cause frequent urination, are physiological reasons, do not need special treatment. 2. Pathological causes: when suffering from diabetes mellitus, can cause osmotic diuresis, causing frequent urination; urethritis, cystitis and other inflammatory diseases of the urinary system due to the stimulation of inflammatory secretions can also cause frequent urination. In addition, pyelonephritis, prostatitis, etc. can also cause urinary frequency. When there is no obvious cause of frequent urination for a long time, and accompanied by other abnormal symptoms such as urinary pain, you should consult a doctor in a timely manner, under the guidance of the doctor to clarify the cause, and active treatment.