About three quarters of people with periods go through PMS at one point or another.
For most people these symptoms are mild. But just under 5% of women experience a more severe form of PMS, known as premenstrual dysphoric disorder, or PMDD.1
PMDD is a hormone-related disorder (also known as an Endocrine disorder) that can have a serious impact on a person’s life. It can make it difficult to work, socialise and maintain healthy relationships due to the emotional and physical symptoms that can greatly affect someone’s mental health.
At the moment, the causes of PMDD are not yet understood. It is thought to be the result of an increased sensitivity to hormone levels, such as the normal hormonal changes that occur during the menstrual cycle. There is also evidence that it may be related to genetic variations, having a family history of depression or having experienced stressful or traumatic past events.