The monthly menstrual cycle prepares an egg for maturation, ovulation and fertilization. The human menstrual cycle comprises three phases:

Follicular Phase =39mL-375mL
Initiates the growth and maturation of an ovarian follicle, which actually begins during the last few days of the previous Luteal Phase. The female hormones estrogen and progesterone are at their lowest levels during the early follicular phase of the menstrual cycle.

Ovulatory Phase = 94mL - 762mL
The interval in which the LH surge induces ovulation.

Luteal Phase = 48mL - 440mL
The last portion of the cycle that prepares the endometrium for implantation of a fertilized ovum.

Postmenopausal = ? 10mL
Diminish as ovarian function decreases.

Male levels = 7.6 - 42.6mL

For more information please contact your physician.