Hello, there are many reasons for frequent micturition. There are probably the following: 1. The amount of urine is increased: under physiological conditions, such as drinking a lot of water, the amount of urine will increase as well as the frequency of micturition. In pathological conditions, such as partial diabetes, diabetes insipidus patients with more drinking water, more urine, and more urination. 2, inflammatory stimulation: acute cystitis, tuberculous cystitis, urethritis, pyelonephritis, vulvitis and so on can occur frequency of urine. In response to inflammatory stimuli, frequent urination, urgency, dysuria may occur at the same time, known as urinary tract irritation. 3, non - inflammatory stimulation: such as urinary calculi, foreign body and so on. 4, bladder capacity is reduced, such as bladder space occupying lesions, pregnancy increased uterine compression, tuberculous bladder contracture, or larger bladder stones. 5, the mental nerve frequency of urination. It is necessary to go to the hospital to further examine the specific reasons for effective treatment.