Menstrual disorders can be caused by a variety of different conditions that may include infections, diseases, certain medications, trauma, hormonal imbalances or pregnancy. These menstrual disorders may include: painful cramps during menstruation, light or infrequent menstruation that occur more than 35 days apart, heavy bleeding accompanied by prolonged menstrual periods, and the complete absence of menstruation, when periods previously occurred regularly but have now stopped for at least three months.
Common causes for menstrual irregularities can include but are not limited to:
- Hyperthyroidism or hypothyroidism
- Eating disorders
- Structural problems such as polyps or uterine fibroids
- Chronic uterine infection
- Advanced liver disease