Understanding PMDD
Many women are familiar with premenstrual syndrome (PMS), which can cause mood changes, bloating, or fatigue before a period. But for some, the symptoms are much more severe. Premenstrual dysphoric disorder (PMDD) is a medical condition that goes beyond typical PMS. It causes intense emotional and physical symptoms that interfere with daily life, work, and relationships.
How PMDD Differs from PMS
The key difference between PMS and PMDD lies in the severity of symptoms. PMS may cause mild discomfort, while PMDD is marked by extreme mood changes and physical symptoms that disrupt normal routines.
Women with PMDD often experience:
- Intense irritability, anger, or mood swings
- Severe depression or hopelessness
- Heightened anxiety or tension
- Loss of interest in usual activities
- Difficulty concentrating
- Extreme fatigue or low energy
- Trouble sleeping or sleeping too much
- Physical discomforts such as bloating, breast tenderness, or joint pain
Track your symptoms daily for two or more cycles using a calendar or free period-tracking app. You can also find helpful planning tools in our Patient Resources. Bring your symptom record to your healthcare provider for an accurate diagnosis and help with guiding treatment.
These symptoms typically appear in the luteal phase of the menstrual cycle (about two weeks before menstruation) and ease within a few days of the period starting.
What Causes PMDD?
The exact cause of PMDD is not fully understood, but researchers believe it is related to sensitivity to hormonal changes in the menstrual cycle. Fluctuations in estrogen and progesterone can affect serotonin, a brain chemical that influences mood, sleep, and emotions.
Other contributing factors may include:
- Family history of mood disorders
- Stressful life events
- Existing anxiety or depression
- Low serotonin levels
If you have a personal or family history of depression or anxiety, mention it to your provider. This information can help tailor your treatment plan and anticipate challenges.
