Clear Vaginal Discharge: What Does It Mean? The Bartholin's gland is located at the entrance to the vagina, and it secretes mucus, providing vulval and vaginal lubrication. A Bartholin's cyst occurs when the gland becomes blocked, and this can 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 Cyprine: definition, function, production and lubrication Smoon Distinguishing Between Vaginal Discharge, Arousal Fluid, & Cervical Mucus