In the western toilets, you are not sure if there may be drops of impurity sticking on the toilet seat, and even if one puts a paper cover over the seat, there is a good chance of the pants, etc, touching areas of the toilet. In a case like this is it ok to urinate standing up in public toilets?
It is Makrooh (disliked) in Shari’ah for a person to stand and urinate without any valid excuse. In the situation mentioned herein, it is a question of doubt that you are not sure whether the seat is clean or not. To eradicate the doubt, you may clean the toilet seat with toilet paper.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai