What is Menopause
 
Menopause is defined as the state of an absence of menstrual periods for 12 months. The menopausal transition starts with varying menstrual cycle length and ends with the final menstrual period. Perimenopause means "the time around menopause" and is often used to refer to the menopausal transitional period. It is not officially a medical term, but is sometimes used to explain certain aspects of the menopause transition in lay terms. Postmenopause is the entire period of time that comes after the last menstrual period.

Menopause is the time in a woman's life when the function of the ovaries ceases. The ovary (female gonad), is one of a pair of reproductive glands in women. They are located in the pelvis, one on each side of the uterus. Each ovary is about the size and shape of an almond. The ovaries produce eggs (ova) and female hormones such as estrogen. During each monthly menstrual cycle, an egg is released from one ovary. The egg travels from the ovary through a Fallopian tube to the uterus.

The ovaries are the main source of female hormones, which control the development of female body characteristics such as the breasts, body shape, and body hair. The hormones also regulate the menstrual cycle and pregnancy. Estrogens also protect the bone. Therefore, a woman can develop osteoporosis (thinning of bone) later in life when her ovaries do not produce adequate estrogen.

Perimenopause is different for each woman. Scientists are still trying to identify all the factors that initiate and influence this transition period.

What are the treatment options for menopause?
Menopause itself is a normal part of life and not a disease that requires treatment. However, treatment of associated symptoms is possible if these become substantial or severe.

Hormone therapy
Estrogen and progesterone therapy
Hormone therapy (HT) , also referred to as hormone replacement therapy (HRT) or postmenopausal hormone therapy (PHT), consists of estrogens or a combination of estrogens and progesterone (progestin). Hormone therapy has been used to control the symptoms of menopause related to declining estrogen levels such as hot flashes and vaginal dryness, and HT is still the most effective way to treat these symptoms. But long-term studies (the NIH-sponsored Women's Health Initiative, or WHI) of women receiving combined hormone therapy with both estrogen and progesterone were halted when it was discovered that these women had an increased risk for heart attack, stroke, and breast cancer when compared with women who did not receive HT. Later studies of women taking estrogen therapy alone showed that estrogen was associated with an increased risk for stroke, but not for heart attack or breast cancer. Estrogen therapy alone, however, is associated with an increased risk of developing endometrial cancer (cancer of the lining of the uterus) in postmenopausal women who have not had their uterus surgically removed.

Hormone therapy is available in oral (pill), transdermal form (patch and spray). Transdermal hormone products are already in their active form without the need for "first pass" metabolism in the liver to be converted to an active form. Since transdermal hormone products do not have effects on the liver, this route of administration has become the preferred form for most women. A number of preparations are available for oral and transdermal forms of HT, varying in the both type and amount of hormones in the products.

There has been increasing interest in recent years in the use of so-called "bioidentical" hormone therapy for perimenopausal women. Bioidentical hormone preparations are medications that contain hormones that have the same chemical formula as those made naturally in the body. The hormones are created in a laboratory by altering compounds derived from naturally-occurring plant products. Some of these so-called bioidentical hormone preparations are U.S. FDA-approved and manufactured by drug companies, while others are made at special pharmacies called compounding pharmacies that make the preparations on a case-by-case basis for each patient. These individual preparations are not regulated by the FDA, because compounded products are not standardized.

Like transdermal HT products, bioidentical hormone therapy products are administered transdermally. They are typically applied as cream or gels. Their advocates believe that their use may avoid potentially dangerous side effects of synthetic hormones used in conventional hormone therapy. However, studies to establish the long-term safety and effectiveness of these products have not been carried out.

The decision about hormone therapy, is a very individual decision in which the patient and doctor must take into account the inherent risks and benefits of the treatment along with each woman's own medical history. It is currently recommended that if hormone therapy is used, it should be used at the smallest effective dose for the shortest possible time. The WHI study findings do not support the use of HT for the prevention of chronic disease


Oral contraceptive pills
Oral contraceptive pills are another form of hormone therapy often prescribed for women in perimenopause to treat irregular vaginal bleeding.

Prior to treatment, a doctor must exclude other causes of erratic vaginal bleeding. Women in the menopausal transition tend to have considerable breakthrough bleeding when given estrogen therapy. Therefore, oral contraceptives are often given to women in the menopause transition to regulate menstrual periods, relieve hot flashes, as well as to provide contraception. The list of contraindications for oral contraceptives in women going through the menopause transition is the same as that for premenopausal women.