Risk Factors

Age plays a key role in menstrual disorders. Girls who start menstruating at age 11 or younger are at higher risk for severe pain, longer periods, and longer menstrual cycles. Between 20 - 90% of teenage girls report menstrual pain and about 15% report that it is severe. Adolescents may experience amenorrhea before their ovulating cycles become regular.

Women who are approaching menopause (perimenopause) may also skip periods. Occasional episodes of heavy bleeding are also common as women approach menopause.

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Other risk factors include:

• Weight. Being either excessively overweight or underweight can increase the risk for dysmenorrhea and amenorrhea.
• Smoking and Alcohol Use. Smokers have a 50% higher risk than nonsmokers for menstrual pain. Alcohol does not cause menstrual pain, but in women with existing dysmenorrhea, alcohol consumption may prolong the pain.
• Stress. Physical and emotional stress may block the release of luteinizing hormone, causing temporary amenorrhea.
• Pregnancy History. Women who have had a higher number of pregnancies are at increased risk for menorrhagia.
• Chronic Pelvic Pain. Many women experience chronic pain in the pelvic area. In one study, about 81% of these women also experienced dysmenorrhea. In this study, stress and irritable bowel syndrome (which is related to stress) were the most common causes of chronic pelvic pain.