If Your Period Suddenly Becomes Much Heavier and You Feel Dizzy

“This period is much heavier than usual, and I feel dizzy when I stand up. Is it just the usual loss of energy during my period?”

When bleeding suddenly becomes much heavier and dizziness appears, do not first explain it as an ordinary menstrual symptom. A medical team needs to assess the possibility of pregnancy, the actual amount and duration of bleeding, anemia, and circulatory status.

Seek emergency care immediately in these situations

The American College of Obstetricians and Gynecologists advises immediate emergency care when bleeding is heavy enough to soak through a pad or tampon every hour for more than two hours and occurs with chest pain, shortness of breath, or dizziness.

The following changes also need prompt assessment.

• Feeling as though you may faint, or actually fainting
• Shortness of breath even at rest or a very rapid heartbeat
• Pale skin, cold sweats, and a rapid loss of strength
• The possibility of pregnancy together with bleeding and abdominal pain

Do not wait for a Korean medicine appointment or try iron supplements first in this situation.

Make “heavier than usual” more specific

It is difficult to measure menstrual blood loss exactly, but the following information helps with assessment.

• How long it takes for a pad or tampon to become soaked
• Whether you need to change protection several times overnight or use double protection
• Whether bleeding continues longer than seven days
• Whether large clots recur
• Whether bleeding also occurs between periods or after intercourse

Heavy menstrual bleeding can lead to iron-deficiency anemia. Treating anemia alone, however, does not resolve the cause of the bleeding.

There is more than one possible cause

Heavy bleeding can have many causes, including structural changes such as fibroids or polyps, changes in ovulation, bleeding disorders, and medicines. When pregnancy is possible, pregnancy-related bleeding must be distinguished first.

At an appointment, clinicians ask about the onset and pattern of bleeding, bleeding between periods, pelvic pain or pressure, and current medicines. Depending on the findings, they may decide on blood tests, ultrasound, hysteroscopy, or other testing. An online article cannot determine that it is “a hormone problem,” “your constitution,” or “stress.”

Address menstrual concerns that remain after assessment

Even after emergency bleeding and causes needing treatment have been assessed, pain, digestion, sleep, and fatigue may continue to fluctuate around the menstrual cycle. At that point, it can be useful to look at what changes first and what shifts together within a cycle.

The order does not change, however. Suddenly heavier bleeding with dizziness needs gynecologic or emergency assessment first. Korean medicine care is a place to address remaining concerns after those results are known.

See our information on menstrual changes and women's care

If period pain is severe enough to keep a teen from school

References

• Abnormal uterine bleeding and emergency-care criteria — American College of Obstetricians and Gynecologists (ACOG)
• Symptoms, causes, and assessment of heavy menstrual bleeding — American College of Obstetricians and Gynecologists (ACOG)
• Assessment and management of heavy menstrual bleeding — NICE guideline NG88

Written by Dr. Ji-young Heo, KMD, PhD in Pathology of Korean Medicine; former Academic Research Professor of Herbal Pharmacology, Kyung Hee University