A risk factor is something that raises your chances of getting a disease or health problem.

You can get a menstrual disorder with or without the factors below. The more factors you have, the greater your chances of having a problem. Ask your doctor what you can do to lower your risk.

Heavy Bleeding

Things that increase the risk of heavy bleeding include:


High body fat raises your risk. Hormones in fat tissues can turn into estrogen. Increased estrogen can lead to heavier bleeding.

Health Problems

The risk of heavy bleeding may be higher if you have:

Young Women

Just after periods begin, teens may have:

  • Too many periods close together
  • Periods spaced further apart
  • Loss of period

These changes happen because development is still happening.

Older Women

Periods may change in time leading up to menopause. The risk of heavy bleeding may also be higher in older women who still have regular periods.

Birth Control

Copper IUDs may cause heavy periods in some. IUDs with progestin may decrease bleeding during a period.

In most women, birth control pills will lower bleeding. Heavy bleeding while taking the pill should be reported to care team.


Medicine that may increase the risk of heavy bleeding includes:

  • Blood thinning medicine
  • Anti-inflammatory medicine
  • Cancer drugs

Lack of Periods

Too Much Exercise

Regular intense exercise may stop the period. It can happen in athletes or those with compulsive exercising.

Eating Disorders

Eating disorders can cause low body fat, rapid weight loss, and hormonal problems. They can all interfere with a period.


Stress can cause an imbalance in hormones. These hormone changes may slow or stop signals to start menstruation. When stress is eased, periods often return.

Health Problems

Health issues related to amenorrhea include:

Stopping a Birth Control Method

A period may not start right after birth control pill are stopped or IUD is removed. It may take several months for a period to start again.

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