"Abnormal (Dysfunctional) Uterine Bleeding "

You use more than 1 sanitary pad per hour.
Your period lasts more than 10 days.
There have been fewer than 20 days between your periods.
Bleeding in between periods or after sex.
If your period stops for more than 3 months.
Adding to the above symptoms, other symptoms may include :
Weight loss
Pain
Discharges
Fatigue due to anemia
Visit a Gynaecologist (Gynaecology and Infertility doctor) if you notice any of the above symptoms.

There are different reasons that may lead to abnormal (dysfunctional) uterine bleeding, like :

Hormonal disturbance (anovulation, thyroid disease, polycystic ovary syndrome)
Fibroids and polyps (both are noncancerous growth that can be found inside the uterus or the cervix which can cause heavy or irregular menstrual bleeding)
Adenomyosis (tissue from the lining of your uterus grows into your uterine wall leading to heavy menstrual bleeding)
Medications (birth control pills, aspirin)
Cancer (uterine cancer, cervical cancer, ovarian cancer, vaginal cancer)
Other causes (endometriosis, ectopic pregnancy

Your gynaecologist will ask about your personal and family health history such as illnesses, surgical procedures, medications, pregnancy history, and birth control pills.

Also, your gynaecologist will need to know the bleeding timing and the amount of bleeding if possible.

Adding to the physical examination, your gynaecologist may request the following tests and scans :

Complete blood count test to determine if you have anemia
Thyroid functions tests
Hormones levels tests
Ultrasound exam to take a picture of the pelvic organs
Hysteroscopy (thin, lighted scope is inserted through the vagina and the opening of the cervix to allow your gynaecologist to see inside of the uterus)
Endometrial biopsy (sample of the endometrium is removed and examined under a microscope)

Treatment of abnormal (dysfunctional) uterine bleeding depends on the cause.

Medications

Medications that could be used to treat abnormal (dysfunctional) uterine bleeding include :

Birth control pills (in patients with problems with ovulation or polycystic ovary syndrome)
Nonsteroidal anti-inflammatory drugs (ibuprofen) to control heavy bleeding and relieve menstrual cramps.
Gonadotropin-releasing hormone (GnRH) agonists can temporarily stop or reduce bleeding by preventing ovulation.
Tranexamic acid: prescription medication that treats heavy menstrual bleeding.
Surgery

There are different types of surgeries that could be used to treat the cause of abnormal (dysfunctional) uterine bleeding according to your age and if you are planning to get pregnant in the future or not.

Hysteroscopy: removing fibroids and polyps.
Uterine artery embolization: blocking blood flow to fibroids, causing them to shrink.
Myomectomy: removing fibroids while keeping your uterus intact and preserving your ability to get pregnant and have children.
Endometrial ablation: using a laser, heat, electricity, or freezing to destroy your uterus lining. You shouldn't have this procedure if you want to get pregnant and have children.
Hysterectomy: removing your uterus; is often used