"For the last 6 months I have been having problems with sweat gland cysts on my vaginal area. I have had 2 removed and now have a third on that needs. These glands produce fluids that lubricate the opening to the vagina. If the opening to one of the glands becomes blocked, fluids may build up inside the gland, causing a painless lump called a Bartholin cyst. A red, tender lump may form when skin bacteria cause an infection at the base of a hair shaft.