Menstrual Cycle

three-women

The menstrual cycle is the female body's monthly pattern of preparing for a possible pregnancy. The uterus grows a new lining called the endometrium; one of the ovaries releases an egg; and then, if the egg is not fertilized by sperm, the endometrium sheds from the uterus as a menstrual period.

Menstrual phase (period)
The thickened lining of the uterus (endometrium) is shed, causing menstrual bleeding. Day 1 of the cycle is the first day of menstrual bleeding. Bleeding usually lasts for 4 to 6 days.

Follicular phase.

The lining of the uterus thickens to prepare for pregnancy. Also, inside a sac (follicle) on the surface of an ovary, an egg becomes ready to be released.

Luteal phase
The egg is released (ovulation). Women's ovulation days can range from about day 7 to day 22 of the cycle. But for an individual woman, the ovulation day is usually quite consistent.

If the egg is fertilized by sperm, it may attach to (implant in) the lining of the uterus, and pregnancy begins.

If the egg is not fertilized or does not implant, the lining of the uterus is shed during the menstrual period, and the cycle starts again.

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Doctors

Listed below are Signature Medical Group physicians who diagnose and treat this condition.

Alisa R. Ash, MD, FACOG

Alisa R. Ash

Independence, MO

  • Obstetrics and Gynecology

Robert T. Caffrey, MD, FACOG

Robert T. Caffrey

Independence, MO

  • Obstetrics and Gynecology

Timothy A. Hall, MD, FACOG

Timothy A. Hall

Independence, MO

  • Obstetrics and Gynecology

Suzanne M. Eggers, MD, FACOG

Suzanne M. Eggers

Liberty, MO

  • Obstetrics and Gynecology

Tracia L. West, MD

Tracia L. West

Liberty, MO

  • Obstetrics and Gynecology

Anna M. Gorman, DO

Anna M. Gorman

Liberty, MO

  • Obstetrics and Gynecology

Timothy J. Billharz, MD, FACOG

Timothy J. Billharz

Liberty, MO

  • Obstetrics and Gynecology

Kent E. Tegeler, MD, FACOG

Kent E. Tegeler

Liberty, MO

  • Obstetrics and Gynecology

Kiersten M. Moreno, MD, FACOG

Kiersten M. Moreno

Independence, MO

  • Obstetrics and Gynecology
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Locations

Independence Women’s Clinic

Independence Women’s Clinic
19550 East 39th Street
#300
Independence, MO 64057
Get directions
816-478-0220

Northland Obstetrics and Gynecology

Northland Obstetrics and Gynecology
2529 Glenn Hendren Drive
Suite 200
Liberty, MO 64068
Get directions
816-781-7820