If you are changing protection every hour or two, doubling up, bleeding through overnight, or passing big clots, that is not 'just a heavy period', that is a heavy flow worth taking seriously. It is common, it is often very treatable, and no, you do not have to just cope with it. Here is what actually counts as heavy, what can cause it, and what helps both day to day and medically.
What counts as a heavy period?
The medical name is menorrhagia. In real terms, a period may be heavy if you are soaking through a pad, tampon, or pair of period underwear every hour or two, needing to double up, getting up overnight to change, bleeding for more than seven days, or passing clots bigger than a fifty-cent coin. If your period dictates what you wear, where you sit and whether you leave the house, that counts.
What causes heavy periods?
Several things can be behind a heavy flow, and it is worth finding the cause rather than guessing. It may be linked to hormonal imbalance, fibroids, endometriosis or adenomyosis, PCOS, coming off hormonal contraception, or changes heading into perimenopause. Some are simple to manage, others need proper treatment, which is exactly why a heavy flow deserves a real answer, not a shrug. More on endometriosis.
Is it normal to pass blood clots?
Small clots on your heaviest days are usually normal; they are just blood that has pooled and thickened before leaving. Regularly passing large clots, bigger than a fifty-cent coin, alongside a heavy flow is the bit worth mentioning to a GP, as it can go hand in hand with conditions like fibroids or adenomyosis.
What is period flooding?
Flooding is that sudden gush where your usual protection cannot keep up, often overnight or when you stand up. It is a hallmark of a genuinely heavy flow, and it is exhausting and stressful. Higher-capacity options like period underwear designed for heavy flow, or a period cup, buy you more time, but persistent flooding is a strong reason to get checked.
When should you see a doctor about heavy bleeding?
Please book in if you are soaking through protection every hour for several hours, bleeding longer than seven days, passing large clots, or bleeding between periods. Also see a GP if you feel constantly tired, dizzy, or breathless, because heavy periods can lead to low iron and anaemia over time, which is very treatable once it is spotted. This is not dramatic; it is looking after yourself. More on period blood.
What helps with a heavy flow?
Day to day, the right kit changes everything: period underwear made for heavy or overnight flow, or a period cup that holds more than a tampon, means fewer changes and less anxiety. Tracking your flow helps you and your GP see the pattern. Medically, there are several effective options once you know the cause, from iron support to hormonal and non-hormonal treatments. The point is you have options, and you do not have to just white-knuckle it. More on extreme period pain.
Quick answers
Q: What is considered a heavy period?
A: Soaking through protection every hour or two, doubling up, bleeding more than seven days, getting up overnight to change, or passing clots bigger than a fifty-cent coin. If your period runs your life, it counts.
Q: Is it normal to pass blood clots on your period?
A: Small clots on heavy days are usually normal. Regularly passing large clots is worth mentioning to your GP, as it can be linked to conditions like fibroids or adenomyosis.
Q: Can heavy periods make you anaemic?
A: Yes. Losing a lot of blood each month can lower your iron and lead to anaemia, which can cause tiredness, dizziness, or breathlessness. It is common and treatable, so see your GP if you notice those signs.
Q: When should I see a doctor about heavy periods?
A: If you soak through protection hourly, bleed longer than seven days, pass large clots, bleed between periods, or feel constantly tired or breathless. Speak to a healthcare professional.
Shop Period Underwear (Heavy Flow / overnight) and the Period Cup for higher capacity.