Bleeding between menstrual periods (e.g., abnormal uterine bleeding, dysfunctional uterine bleeding, spotting) is a common type of menstrual disorder omg women of reproductive age in the world today.

Abnormal uterine bleeding can be a symptom of another medical condition, which can vary from minor medical issues to very serious issues.

Abnormal uterine bleeding is irregular uterine bleeding that occurs in the absence of recognizable pelvic pathology, general medical disease or pregnancy.

It reflects a disruption in the normal cyclic pattern of ovulatory hormonal stimulation to the endometrial lining.

Abnormal uterine bleeding means that periods may be heavier or last longer than normal or not come at all.

The underlying causes may include ovulation problems, fibroids, the lining of the uterus growing into the uterine wall, uterine polyps, underlying bleeding problems, side effects from birth control, or cancer.

Also, more than one category of causes may apply in an individual case.

Conditions that may cause abnormal uterine bleeding include:

Blood clotting disorders or use of certain anticoagulant medications.
Cancer of the cervix, vagina, or uterus.
Chronic medical conditions, such as thyroid problems or diabetes.
Complications caused by birth control pills, an IUD (intrauterine device), or pregnancy.
Pelvic inflammatory disease (PID; infection in the reproductive system).
Polycystic Ovarian Syndrome (PCOS caused by a hormonal imbalance)
Uterine fibroids or uterine...read more on https://www.planbwellness.com/what-is-abnormal-uterine-bleeding/