Night urination suddenly increases, mainly consider more water consumption, prostatic hyperplasia, urinary system infection and other reasons, as follows: First, more water consumption: this is a normal physiological phenomenon, after eating too much will lead to an increase in urine volume, so suddenly appear more night urination; Second, prostatic hyperplasia: mostly the case of older men, there will be an increase in the number of night urination, generally caused by prostatic hyperplasia, resulting in prostate This is a gradual process that gradually worsens, and can be improved to some extent by medication; third, urinary system infection: this condition is mostly accompanied by symptoms of painful urination and urgency.