It’s Not “Just PMS”: Understanding PMDD and the Impact of Being Dismissed

“It’s just PMS.”

For many people, those three words minimize an experience that can be debilitating.

While premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD) are often used interchangeably, they are very different conditions. Understanding that difference can help people access the support and treatment they need.

PMS is common and may involve symptoms such as bloating, fatigue, headaches, irritability, and mild mood changes before a period. Although these symptoms can be frustrating, they generally do not significantly disrupt daily life.

PMDD is much more than “severe PMS.” It is a menstrual cycle related mood disorder that can cause intense anxiety, depression, irritability, hopelessness, emotional overwhelm, and difficulty concentrating during the luteal phase of the menstrual cycle. These symptoms can affect work, relationships, parenting, and overall quality of life. They typically improve within a few days after menstruation begins.

Unfortunately, many people with PMDD spend years believing what they are experiencing is normal or being told they simply need to cope better.

A recent scoping review examining the lived experiences of people with PMS and PMDD found four common themes: feeling misunderstood or dismissed, experiencing a sense of living with two different versions of themselves across the menstrual cycle, relationship challenges, and significant barriers to receiving an accurate diagnosis. The review also highlights the need for greater awareness and education among healthcare professionals so that individuals receive timely, compassionate, and evidence based care (Rodriguez et al., 2026).

As therapists, we are often in a unique position to notice patterns that others may miss. When clients describe cyclical changes in mood that consistently occur before menstruation and resolve afterward, it may be worth exploring whether PMDD could be part of the picture.

Validation matters. So does asking the right question.

Sometimes, understanding that it is not “just PMS” is the first step toward helping someone reclaim two weeks of every month. 

Read the study here: https://www.tandfonline.com/doi/full/10.1080/07399332.2026.2671885#abstract