PMS vs PMDD – How to tell the difference and why it matters
Hormonal changes before a period are a completely normal part of the menstrual cycle.
For some, these shifts may bring slight discomfort, pain, or irritability, all of which are typical symptoms of PMS.
But what happens when PMS isn’t just PMS? If your PMS symptoms are often more severe, or if they have a significant impact on your physical, emotional, or mental state, you may have Premenstrual Dysphoric Disorder (PMDD).
PMS vs PMDD
What is PMS?
Premenstrual Syndrome (PMS) is a common condition, as nearly 75% of people who menstruate experience some form of it during their cycle. The symptoms of PMS begin during the luteal phase, which takes place about a week before the period starts, and tend to occur in a more predictable pattern. Typical symptoms of PMS may include:
- Mild mood swings
- Irritability
- Bloating
- Food cravings
- Headaches
- Acne or spotty skin
However, unlike PMDD, the symptoms of PMS are usually treatable with more natural remedies such as herbal tea, exercise, stress management, over-the-counter medication, supplements, and a well-balanced diet.
What is PMDD?
PMDD is considered to be a much more severe form of PMS, as its symptoms are so severe that they often disrupt the ability to function in everyday life.
PMDD is a chronic health condition that has been officially labeled as a mental disorder, since most of its symptoms have a significant impact on emotional or mental health.
While the condition affects around 6% of people who menstruate, it is still often overlooked and dismissed.
How to recognize it – Symptoms of PMDD
Unlike PMS, PMDD is not just uncomfortable, it can be debilitating. People with PMDD often experience a more severe form of symptoms, such as:
- Extreme mood swings
- Severe irritability or anger
- Depression
- Anxiety
- Self-critical thoughts
- Fatigue
- Changes in appetite or sleep patterns
- Physical symptoms (bloating, weight gain, headaches, etc.)
In order to be officially diagnosed, you must experience at least five of the common symptoms around 10 to 14 days before your period, and the symptoms must stop within a few days after your period starts. The symptoms of PMDD are differentiable from PMS because of when they start and how long they last. These symptoms must be present in most menstrual cycles over the course of a year and must significantly impact daily functioning.
Because the symptoms of PMDD are similar to other health conditions or disorders, such as depression, anxiety, and thyroid conditions, it can often be misdiagnosed or misunderstood, especially if a healthcare provider is not aware of the cyclical pattern tied to the menstrual cycle.
In many cases, getting an accurate diagnosis requires self-advocacy, and collaboration with a clued-up healthcare provider.
Getting help – What is the treatment for PMDD?
Understanding whether you’re experiencing PMS or PMDD isn’t just about labeling your symptoms; it’s about validating your experience and finding the right support.
While PMS can often be easily managed, PMDD typically requires a more in-depth treatment approach. Effective treatments for PMDD include:
- Hormonal birth control
- Antidepressants
- Diet or lifestyle changes
- Cognitive-behavioral therapy (CBT)
- Psychotherapy
- Pain medication
Suspect you have PMDD?
If you think you may have PMDD, here are three steps you can take towards getting an accurate diagnosis:
- Track your symptoms – Start by keeping a daily log of your emotional, physical, and behavioral symptoms for at least two consecutive menstrual cycles. Use a journal or app to note when symptoms begin, how intense they are, and when they subside.
- Track your menstrual cycle – Knowing exactly when you ovulate and when your period starts can help you pinpoint your luteal phase, which is when PMDD symptoms usually appear. This helps identify patterns and distinguish PMDD from other conditions.
- Find the right doctor for you – Bring your tracking records to a gynecologist, primary care physician, or mental health provider. If necessary, request referrals for a reproductive psychiatrist, endocrinologist, or OB-GYN who specializes in menstrual disorders.
Recognizing the difference between PMS and PMDD is essential to advocating for your mental and physical well-being. While hormonal shifts are usually a natural part of the menstrual cycle, the impact they have on daily life can vary, and in the case of PMDD, they can be truly damaging.
If your premenstrual symptoms feel intense, unmanageable, or disruptive in terms of your ability to function, you deserve to be taken seriously. Seeking professional guidance and exploring treatment options can lead to real relief. You are not alone, and your experiences are valid. Getting the right support can make all the difference: not just during your period, but throughout day-to-day life.
Next on your reading list: Your menstrual cycle and fertility – what your period can tell you (& the fertile signs to look for, each month)
