The night urine well a bed and then have to urinate, is a manifestation of urinary frequency, may be physiological factors, polyuria frequency, inflammatory frequency, neurological frequency, bladder capacity reduction frequency, periurethral lesions and other causes. 1. Physiological factors: for example, drinking more drinks or water, mental stress, cold environment, can lead to increased urination, mostly normal phenomenon. Reduce the intake of liquid, improve the environment, adjust the mood, usually can improve the situation of frequent urination. 2. Pathologic factors: (1) polyuria frequency: increased urination, and each time the volume of urine is not less, and the total volume of urine increased. See diabetes mellitus, uremia, etc. (2) Inflammatory urinary frequency: frequent urination and small amount of urine each time, mostly accompanied by urinary urgency, urinary pain, such as cystitis, urethritis, prostatitis, etc.. (3) Neurogenic urinary frequency: frequent urination and small amount of urine each time, mostly seen in central and peripheral neuropathy, such as hysteria, neurogenic bladder. (4) Reduced bladder capacity urinary frequency: such as bladder occupation, bladder tuberculosis, etc., manifested as persistent urinary frequency. (5) Periurethral lesions: urethral polyps, paraurethral cysts, etc. irritate the urethral opening causing urinary frequency. The appearance of the above symptoms, should attract enough attention, as soon as possible to the urology department for medical treatment, and follow the guidance of the specialist for treatment.