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Metrorrhagia is the term used to describe bleeding between periods, or bleeding unrelated to the menstrual period.


Metrorrhagia can be caused by a hormonal imbalance. The start of menstruation during puberty and the length and regularity of the menstrual cycle is controlled by hormones produced in an area of the brain called the hypothalamus, as well as by the pituitary and adrenal glands.

The type of hormonal imbalance that causes metrorrhagia can occur when hormone medications, such as birth control pills, are used improperly.

Many causes of metrorrhagia are related to the cervix or uterus, including cancer, inflammation or infections, non-cancerous polyps (growths), scar tissue in the uterus (adhesions), and the growth of uterine tissue outside the uterus (endometriosis).

Metrorrhagia can also be caused by miscarriage, a pregnancy that is developing in the fallopian tubes (tubal or ectopic pregnancy), the use of an intrauterine device (IUD) for birth control, or chronic medical problems such as thyroid disorders, diabetes, and blood-clotting disorders.




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