Douche: Usually, a stream of water applied into the vagina for cleansing purposes. A douche can use a solution, such as vinegar and water, rather than simple water, and it can be directed at any body cavity or part. From Women's Health Resources What's Living in Your Dirty Sheets?Calculate Your BMI HereFast Relief From Migraines: CGRP Inhibitors Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew