Hello and welcome to HCM. Thank you for your query. The information provided is not sufficient, but it appears as though your father was hospitalized due to some emergency in relation to his urinary system. This could most probably be due to urinary retention. This is most probably due to an enlargement of his prostate, which would have applied pressure on his ureter and thus lead to a slowly progressing obstruction of the ureter. To a point where his prostate enlarged large enough to completely block the ureter. Either this, or an infection that could have resulted in symptoms that led to his urinary problems. As you have not mentioned the exact urinary problems he had, it is difficult to pin-point the cause. You should discuss all the symptoms, and the diagnosis with your father s doctor, it is always best to be informed. If your father s condition is related to hypertension then this is most probably BPH, as mentioned above. Treatment would be best attained with alpha-blockers. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you. Best wishes.