Causes of Heavy Periods

Ask the Expert

Q:

What causes heavy periods?


A:

Often, the underlying cause of excessively heavy periods is not known. Many women experience heavy flow when the body's healthy blood clotting process doesn't function properly. The breakdown of blood clots occurs more rapidly than normal, causing excessive bleeding during menstruation.

There are several other causes, including:

  • uterine fibroids (however fibroids often cause no symptoms)
  • conditions in which pieces of the lining of the uterus grow outside the uterus or into the muscle of the uterus (adenomyosis)
  • hormonal imbalance
  • certain birth control methods, such as an intrauterine device (IUD) or birth control pills
  • uterine, cervical or vaginal cancers
  • chronic liver, kidney or thyroid conditions
  • some medications, such as anti-inflammatory medications, anticoagulants and some hormones
ADVERTISEMENT

L’Oreal Fellow Lisa Poulikakos Uses Engineering to Improve Breast Cancer Diagnostics

By bringing light and nanosurfaces to medicine, Poulikakos aims to make quick, precise breast cancer diagnosis accessible to all.

Science and Technology

Good Nutrition Can Contribute to Keeping Covid-19 and Other Diseases Away

Healthy eating isn't only about weight control: overindulging in unhealthy food can potentially harm your immune system.

Nutrition & Movement

Heart Health During Pregnancy and Beyond

As you talk to your doctor about your reproductive health and other factors we typically associate with pregnancy, you should also pay close attention to your heart.

Pregnancy & Postpartum