Menopause marks the end of a woman's menstrual cycles and fertility.
A woman is generally considered to be in menopause if she has not had a menstrual period in twelve months. Women usually begin the gradual transition to menopause (perimenopause) between ages 40 and 50. During this transition, levels of the hormone estrogen can fluctuate, and women may experience symptoms such as:

• Irregular or skipped periods

• Vaginal dryness

• Hot flashes

• Night sweats

• Trouble sleeping

• Mood changes

• Weight gain and slowed metabolism

•  anxiety or depression.

Although menopause is a natural part of aging, it is associated with an increased risk of adverse health conditions. Decreased estrogen can put women at risk for bone loss (osteopenia) and osteoporosis, which can lead to bone fractures. Low estrogen may also contribute to unhealthy lipid levels and increased risk of heart disease.

Blood Test for Identify Menopause periods
TSH
FSH
Estorgen
AMH 

Menopause is a natural process with treatments that focus on symptomatic relief. Vaginal dryness is treated with topical lubricants or estrogen. Medications can reduce the severity and frequency of hot flushes. In special circumstances, oral hormone therapy may be used.