Thanks for the query.
Usually the vaginal discharge
will decrease during intercourse.
So if the white discharge you are having is having some foul smell or associated with itching or altered in color or consistency, there is possibility of some infection.
If you are having any of these symptoms, you once consult gynecologist and get examined to find out the possible cause for your problem and take treatment accordingly.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429