---
title: What are PMS and PMDD? | Niyora
description: PMS is a set of emotional and physical symptoms that happen one to two weeks before a period and go away shortly after it starts. PMDD is a more severe type o
url: https://niyora.com/research/papers/sindrome-premenstrual-pms-y-trastorno-disforico-premenstrual-pmdd-2010/
---

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- What are PMS and PMDD?

Study, 2010

# What are PMS and PMDD?

PMS is a set of emotional and physical symptoms that happen one to two weeks before a period and go away shortly after it starts. PMDD is a more severe type of PMS where the emotional symptoms are much worse and can interfere with daily life.

 Early or limited evidence

Women in general before menopause

## What they did

This educational overview describes the definition, prevalence, and characteristics of PMS and PMDD.

## What they found

About 75 percent of women experience PMS at some point before menopause. About 3 to 6 percent of women have PMDD. Women who have had severe depression are more prone to developing PMDD.

## What it means for you

PMS is very common, but severe PMDD is rarer and can be more disabling. The key difference is that emotional symptoms are worse in PMDD.

75 percent

of women experience PMS at some point before menopause

3 to 6 percent

of women have PMDD

## About the study

Original title Sindrome premenstrual (PMS) y trastorno disforico premenstrual (PMDD) Authors Rogerio A. Løbo, JoAnn V. Pinkerton Journal The Journal of Clinical Endocrinology & Metabolism Year 2010 Study design Study What was tested None - this is informational Read the paper [doi.org/10.1210/jcem.95.4.9999](https://doi.org/10.1210/jcem.95.4.9999)

## Topics

[Premenstrual syndrome (PMS)](https://niyora.com/research/topics/condition-pms/)[Premenstrual dysphoric disorder (PMDD)](https://niyora.com/research/topics/condition-pmdd/)

Research tells you what helps on average. Niyora helps on the day it hits.

Calm down, see it another way, and decide what to say, with a PMS and PMDD app built by a doctor.

## Related studies

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Systematic review, 2026

How often do mood disorders and PMS or PMDD occur together?

Systematic review, 2026

Are hormone levels different in women with PMS?

Systematic review, 2026

Does vitamin D supplementation help PMS symptoms?

Study, 2026

How do women with PMDD process emotions differently in their brains?

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