For this reason, it is very important to use contraception during the pre-menopausal period. Doctors have shown that the use of low-estrogen oral hormonal contraception in non-smoking premenopausal women provides a number of benefits and a low risk of side effects.

We define the transition period as the variably long period of a woman's life from the onset of the first symptoms of ovarian extinction to menopause. However, there are no scientifically proven symptoms that say unequivocally that a woman is in premenopause.

A woman's fertility declines during the transition period. At the age of about 37, a phase of accelerated loss of ovarian follicles of about 25,000 begins (a female foetus has 2 million follicles at birth). Ten years before menopause, a further approx. 20,000 follicles are lost at a rapid rate. At the time of the last menstrual bleeding, no more than a thousand remain in the ovaries.

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The most common symptoms that premenopausal patients complain of are:

• irritability,
• depression,
• headaches,
• memory disorders,
• poor quality of sleep
• excessive sweating
• decreased libido.

The use of hormonal contraception in premenopause significantly reduces the risk and severity of these symptoms.