What Causes Heavy Periods and Abnormal Vaginal Bleeding?

A lot of women suffer from abnormal vaginal bleeding and heavy periods, which keeps them worried and is a cause for concern for them. Well, it’s a medical condition and we’re discussing it today.

Menstruation is when blood from your uterus drips out of your vagina for a few days every month. It starts once you hit puberty usually when you are 11-15 years old. Menstrual pain is responsible for your period every month. It is controlled by hormones, which are regulated during this time. It lasts for 2-7 days but is different for everyone.

Menorrhagia (Heavy Periods)

A common concern these days for women is Menorrhagia. It is a medical condition in which a women faces heavy or prolonged periods. On average, a woman loses 30 to 40 milliliters of blood over a period of 4-5 days i.e. one cycle. But menorrhagia is a loss of over 80 milliliters of blood in one cycle or twice the normal amount.

In this condition, the menses may last longer than 7 days with heavy or abnormal bleeding. The most common and easy way to know whether a woman has Menorrhagia is that it requires women to change her pad or tampon every 2 hours. Also, she may pass blood clots larger in size than a quarter and may experience anemia due to the high amount of blood loss.

Reasons For Menorrhagia

Vedyou brings the underlying reasons for Menorrhagia:

Irregular ovulation or PCOS

Polycystic Ovarian Syndrome, affecting 5-10% women of the fertile age, is a condition in which the female hormones are imbalanced and causes heavy or irregular bleeding. If a woman isn’t ovulating, we cannot keep a check on the thickness of the endometrium. But, when ovulation does happen, the built-up lining comes out all at once during menstruation. Thus it may lead to heavy or abnormal bleeding.

Uterine fibroids

Fibroids are abnormal and benign growths that form in the muscle of the uterus. They are very common and can affect up to 80% of women of the childbearing age. They are often referred to as ‘tumours’, but the vast majority are not cancerous. These uterine fibroids can be a reason for heavy and abnormal bleeding.


It is a condition when the endometrial glands grow into the muscle of the uterus. As a result, the uterus grows larger, and it can be tender when you are examined. It usually has the same symptoms as that of the fibroids. Thus it also a common cause of painful, heavy and abnormal periods.

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Uterine Polyps

Polyps are the small and benign growths attached to the lining of the uterus or the endometrium. They are also known as Endometrial Polyps. They can also occur at the cervix. Polyps may cause heavy menstrual bleeding, bleeding between periods or bleeding after sexual intercourse.


Endometriosis occurs when the uterine tissue grows outside the uterus into the pelvic cavity. Symptoms of endometriosis include severe menstrual cramps, pain during sex, lower back pain before or during your period, and difficulty with bowel movements. Thus it causes heavy and painful periods.

 Inherited bleeding disorders

There are some inherited bleeding disorders such as Von Willebrand’s disease. It is a condition in which an important blood-clotting factor is deficient or impaired, which can cause abnormal menstrual bleeding.

 Pregnancy complications

A single, heavy abnormal period may occur due to a miscarriage. The death of the unborn baby inside the womb causes heavy bleeding. Another cause of heavy bleeding during pregnancy may be an unusual location of the placenta, such as a low-lying placenta.

  Intrauterine Devices

Certain IUDs that are non-hormonal, have a major side effect that causes Menorrhagia. These birth control devices generally lead to abnormal and heavy bleeding.


Uterine cancer and cervical cancer (which is rare) in women can cause excessive menstrual bleeding, especially if you are postmenopausal or have had an abnormal Pap test in the past. So it may also lead to heavy and abnormal bleeding.

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There are certain medications, including anti-inflammatory medicines, hormonal medicines such as estrogen and progesterone and anticoagulants such as warfarin, can contribute to heavy menstrual bleeding. These medicines regulate and imbalance hormones due to which women face abnormal periods.

Here above are the reasons that accumulate and lead to heavy and abnormal periods. So keep a check on your monthly periods and consult a good gynecologist and keep yourself healthy and fit.