Perimenopause is a term used to describe the period of time leading up to menopause: where a woman stops ovulating, and so stops menstruating. During this time, your ovaries will start to gradually produce less oestrogen, until your periods finally finish. It is common to experience symptoms such as hot flushes, lowered libido, mood swings and more during perimenopause, due to the changing role of hormones within your body.
Whilst the average woman will experience perimenopause for four years, some women may experience symptoms for much longer, or much less. Perimenopause ends once a woman has gone one year without having her period.