Although ejaculation occurs for only around ten per cent of women (compared with most men), the colorless fluid released by some during orgasm has a similar make-up to semen, containing prostatic acid phosphatase, glucose and fructose. It is produced by the Skene's glands, which are located within the urethra walls.
Unlike female ejaculate, it is standard for all women to secrete a fluid prior to orgasm and during sexual arousal. This fluid facilitates comfortable sexual intercourse by lubricating the vaginal walls.
When the quantity of this fluid decreases, it can lead to vaginal dryness, or atrophic vaginitis. This is commonly caused by menopause, but may also be related to hormone treatments, radiation, chemotherapy, exercise or mental stress.