Premenstrual syndrome (PMS) is a combination of many cognitive and emotional symptoms affecting women in menstruating age. 

PMS and it’s more severe form, premenstrual dysphoric disorder (PMDD) are commonly associated with other mood-related disorders such as major depressive disorder and causes significant life impairment with mood swings, tension and anxiety, but their relationship with personality disorders is less clear.

Many psychological, physical and social behavioural factors have an impact on occurrences of PMS. According to the Diagnostic and Statistical Manual of Mental Disorders, PMS and its more severe form, premenstrual dysphoric disorder (PMDD) is regarded as a type of depressive disorder (DD). The psychiatric markers of PMDD are characterised not only by mood symptoms but also by those for anxiety. Most women with PMS suffer with a lifetime history of anxiety disorder in addition to a prolonged depressive disorder.