What should you know about heavy but short period?

A cycle may be briefly heavy when hormone signals change, including around perimenopause or with polycystic ovary syndrome. Uterine fibroids, adenomyosis, endometrial polyps and endometrial hyperplasia can also be associated with heavy periods. A short episode does not exclude these possibilities. Repeated heavy bleeding may reduce iron stores and cause tiredness, headaches or breathlessness.

Track the date, the heaviest hours, clots, pain and how quickly products become saturated. Record whether the episode followed a late period, a contraception change or a missed dose of prescribed medicine. Contact a clinician if this is new, happens again or affects work, sleep or movement. They can decide whether examination or blood tests are appropriate.

Use urgent services for heavy bleeding with fainting, severe dizziness, difficulty breathing, chest symptoms, severe pelvic pain or possible pregnancy. Fever or feeling acutely unwell also needs prompt assessment. Seek review for bleeding after menopause, even when the episode was short.

What could explain a short burst of heavy flow in my situation? Should my iron level or blood count be checked? Could my contraception or medicines be contributing? Which changes mean I should seek same-day care?