Need to evaluate more After proper analysis only we can move to treatment part

Thanks for Trust shown with Ayurveda the traditional yet scientific health care, ayurvedic Basti surely add value so pls consult Ayurveda dr nearby

It can be due to various reasons like obstruction.  According to age of your father it can be due to prostetomegaly.  Tb.  Bangshil 2 twice a day. 

Weak muscles and somtimes Nerve damage also leads to over active bladder. age the patient? any treatment or surgical history? Wheather he is taking any medicines?? Plzz detail about the case..

Start proper ayurvedic medicine... To get rid of this issue..

Try with Hemiplasia tab 1 tid. Ural BPH cap 1 tid. Sukumaram kashayam 10ml bd

Post void volume may as well be due to obstructive causes such as an enlarged prostate. You must first get to the cause for a permanent solution.

Take a proper consultation and start treatment after sharing health hustory

Find out root cause of your problem by ayurved way diagnosis Correct it by ayurved way medicine diet and lifestyle corrections Finding out root cause and its cure is very important for improvement permanent cure Correct diagnosis by ayurved way is very important main factor in treatment Take any ayurved medicine after proper ayurved way diagnosis only for avoiding bad effects of intake