White Discharge After Sex: What It Means and When to Worry Thomson Medical When can a lubricant be helpful during and after menopause? Dr Anna Cabeca Vaginal Genital Anatomy A frontal cross section illustration of the vagina showing the action of a vaginal lubricant which lubricates the entrance to the vagina and hydrates SuperStock Primarily caused by declining estrogen levels, it can result in discomfort, pain during intercourse, and an increased risk of vaginal infections. Less estrogen results in lower blood flow and lubrication, causing thinning