Hi welcome to HCM... Usually masturbation doesn t lead frequent urination.... By overmasturbation stress can occur and that indirectly can lead frequent micturition So try to avoid stress .... Chronic Cystitis, prostate enlargement also can lead frequent urination.... So get examined your prostate by per rectal palpation and for cystitis USG done ... One other important condition that is diabetis insipidus has to be ruled out by water deprivation urine test and urine physical and chemical examination... If pituatory lesion suspected MRI can be done According to cause treatment done Ex.for central diabetis insipidus desmopressin needed If no cause found than excess water intake is the cause Take care Advise : Nephrologist consultation....