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Concept
Premenstrual dysphoric disorder
Summary
Premenstrual dysphoric disorder (PMDD) is a mood disorder characterized by emotional, cognitive, and physical symptoms. PMDD causes significant distress or impairment in menstruating women during the luteal phase of the menstrual cycle. The symptoms occur in the luteal phase (between ovulation and menses), improve within a few days after the onset of menses, and are minimal or absent in the week after menses. PMDD has a profound impact on a person's quality of life and dramatically increases the risk of suicidal ideation and even suicide attempts. Many women of reproductive age experience discomfort or mild mood changes prior to menstruation. However, 5–8% experience severe premenstrual syndrome causing significant distress or functional impairment. Within this population of reproductive age, some will meet the criteria for PMDD.
The exact cause of PMDD is currently unknown. However, because the symptoms are only present during ovulatory cycles and resolve after menses, it is believed to be caused by fluctuations in gonadal sex hormones or variations in sensitivity to sex hormones.
In 2017, researchers at the National Institutes of Health discovered that women with PMDD have genetic changes that make their emotional regulatory pathways more sensitive to estrogen and progesterone, as well as their chemical derivatives. The researchers believe that this increased sensitivity may be responsible for PMDD symptoms.
Some studies have suggested that those with PMDD are more at risk of developing postpartum depression after pregnancy, but other evidence has been found to suggest against that notion. PMDD was added to the list of depressive disorders in the Diagnostic and Statistical Manual of Mental Disorders in 2013. It has 11 main symptoms, and a woman has to exhibit at least five to be diagnosed with PMDD. Roughly 20% of females have some symptoms of PMDD, but either have less than five or do not have functional impairment.
First line treatment for PMDD is with selective serotonin reuptake inhibitors (SSRIs).
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