When you urinate there is white like mucous you found in your urine?

This is not a medical-advice web-site, and I am not a doctor, but there should be no mucous or other unusually-coloured material in the urine (although large doses of certain foods may temporarily discolour it).

If there is, and the discolouring persists for more than a couple of days or so, you must consult your doctor.