Dear Patient, your symptoms may be secondary to a large number of causes. However, you should focus your attention to three categories: 1) drugs, as diuretics, because they simply increase the urine output, thus causing a rapid filling of the bladder and finally urgency to urinate; 2) renal insufficiency, since it one of the most important symptoms is nicturia (and IgAN gives, in general, a slowly progressive renal failure if it is not sufficiently controlled by treatment; 3) urine tract infection, although it is rare in male, but became frequent in patients on immunosuppressive drugs (but this I don t know if it applies to you). I would recommend to perform a urine culture and a new urinalysis to make sure there are not bacteria in the urine. Let me know,