What should you know about sudden very heavy period?

A change in bleeding can occur with perimenopause, polycystic ovary syndrome, or a shift in ovulation. Uterine fibroids, adenomyosis, endometrial polyps, and endometrial hyperplasia can also present with heavy periods. Heavy bleeding may gradually deplete iron stores and cause tiredness, breathlessness, paleness, or a racing heartbeat.

Record how often you change pads or tampons, whether blood leaks through clothes or bedding, clot size, pain, cycle timing, medicines, and pregnancy possibility. This pattern helps distinguish an isolated change from bleeding that needs investigation.

Contact a clinician promptly if the flow is much heavier than usual or continues beyond your expected period. Rest, drink normally, and keep a written record of products used and symptoms. Do not take aspirin for bleeding unless a clinician specifically directs you to do so.

Assessment may include a pregnancy test, blood count and iron checks, pelvic examination, or ultrasound, depending on your history. Treatment can target the bleeding and its cause; iron treatment may be considered when deficiency is found. Bring your medicine list, including blood thinners.

Seek urgent care if bleeding rapidly soaks through protection, you feel faint, confused, very weak, short of breath, or have chest pain. Severe pelvic pain, fever, or heavy bleeding with a possible pregnancy also needs prompt assessment. Do not drive yourself if you feel faint.

Ask: What could explain this change in flow? Should I have a pregnancy test, blood count, iron test, pelvic examination, or ultrasound? Could a fibroid, polyp, adenomyosis, or hormonal condition be involved? What treatment is suitable, and which warning signs mean emergency care?