I have white discharge. but no itching, smelling, burning or irritation just discharge. can you tell me why?

Hard to guess: Many women have vaginal discharge, but some types of discharge are not normal. A woman may see normal changes in discharge before or after her period. Changes in discharge that may be an infection: a bad odor; vaginal itching or swelling; a green, yellow, or gray colored discharge; discharge looking foamy or like cottage cheese; etc. A doctor can check, if symptoms persist, recur or are worrisome.