A vaginal cyst is a lump of fluid or semi-solid tissue that accumulates along the walls of the vagina, usually near the opening. They are most often the product of imperfect healing after vaginal trauma, like childbirth or a hysterectomy. These cysts are rarely cancerous, and in many cases, they do not even cause any discomfort. Sometimes cysts are not discovered until a routine pelvic exam is conducted. When there is no pain associated with the cysts, the best treatment option may be to do nothing. You can choose to ignore them and they may disintegrate on their own.