Hormonal Imbalances
A change in the balance between estrogen and progesterone. These are key hormones in the regulation of a normal menstrual flow and keeping the normal lining of the uterus (endometrium). This type of hormone imbalance is often seen in the peri-menopausal women. This is transition period a woman goes through prior to becoming menopausal (no menses for 12 consecutive months).

Fibroids
Fibroids are usually benign growth of muscle spindle cells that cause growth in the uterus. Depending on their location they may cause symptoms of pressure, pain and heavy bleeding.

Polyps
Polyps usually benign fleshy growth with the uterus cavity that may lead to erratic bleeding.

Infections
Infections of the uterus or cervix can be serious and cause symptoms including excessive bleeding. Infections are commonly treated with antibiotics.

Bleeding Disorders
Disorders that impair blood clotting (thickening of the blood to slow or stop its flow) are serious disorders that need medical attention. If you think you have this disorder, it is important to see your doctor as soon as possible.

Neoplasia
These may be associated with pre-cancerous or cancerous growth of new tissue withing the uterine cavity.

Medications
Some drugs and herbs may cause heavy bleeding. The most common medications associated with heavy bleeding are anti-coagulants and NSAIDs. All medications should be reviewed with your physician.

Other medical conditions that may cause abnormal bleeding
Pelvic Inflammatory disease (PID), thyroid problems, endometriosis, lupus, liver or kidney disease, blood clotting disorders, Von Willebrands disease. Some cancer treatments and chemotherapies may also play a role.

Higher risk candidates for heavy periods include:
- Women who are overweight
- Women who have never been pregnant
- Women with thyroid problems or diabetes
- Women over 35