Why clots happen
Menstrual clots are a normal part of many periods. Your body releases anticoagulants to help period blood flow, but when bleeding is heavier or faster than those can keep up with, the blood clots — appearing as jelly-like lumps, often darker in colour. Small clots, especially on your heaviest days, are generally nothing to worry about.
So the presence of some clots isn't the issue — it's the size, frequency and the overall amount of bleeding that matter.
When clots suggest heavy bleeding
Large clots (bigger than a 50-cent coin), frequent clots, or clots together with very heavy bleeding can be a sign of heavy menstrual bleeding (menorrhagia). Signs your bleeding is heavy include soaking through pads or tampons every hour or two, flooding, needing double protection, or bleeding lasting more than seven days.
Heavy periods are common and under-treated, and they can lead to iron deficiency — another reason worth investigating them rather than putting up with them.
When to see a GP
See a GP if you're passing large clots, bleeding heavily, feeling tired or breathless (possible iron deficiency), or if your bleeding has changed. Causes can include fibroids, hormonal changes, polyps or other treatable conditions.
Your GP can check your iron, arrange an ultrasound if needed, and discuss effective treatments — from medication to a hormonal IUD. A telehealth consult can start the assessment and get you relief.
Related condition
Periods & menstrual health →References & sources
- 1.Periods — Jean Hailes for Women's Health
- 2.Heavy periods — healthdirect
- 3.Menstruation — healthdirect
- 4.Heavy periods — Better Health Channel
This content is general information and not a substitute for individual medical advice. Please consult a GP for your personal situation.
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