In most women with heavy periods, the womb and ovaries are normal.
The problem is likely to be due to local factors of the endometrium(lining of the womb):
- changes in the blood concentration of natural chemicals called prostaglandins, which help to close off the blood vessels;
- changes in the blood clotting mechanism in the womb lining.
However other pathological causes have to be excluded before reaching this diagnosis.
The doctor will check for specific problems such as:
- Fibroids
- Endometrial polyps
- Endometrial hyperplasia (thickening of the lining of the womb)
- Pelvic inflammatory disease (PID) due to infection;
- Underactive thyroid gland;
- Blood-clotting disorder
- Use of anti-clotting drugs (i.e warfarin)
Sometimes periods become heavier after certain phases or events in woman’s life.
These are:
- After childbirth,
- After coming off the pill,
- Following the insertion of an intra-uterine contraceptive device (coil).
- During the years leading up to the menopause.