Heavy or missed periods
Heavy bleeding can lead to anaemia. Missed periods can come from pregnancy, stress, thyroid or PCOS. Knowing the line between normal and a problem keeps you safe.
Very heavy bleeding with dizziness or fainting needs a doctor the same day.
At a glance
Do
- Track your cycle dates
- Change your pad or product on time
- Drink water and rest when you need to
Do not
- Do not feel shy or hide your pain
- Do not use one product for too long
- Do not ignore very heavy bleeding or fainting
Before you start 0 / 3
Steps
Normal: about 3 to 7 days, changing a pad every 3-4 hours or longer.
Warning: soaking a pad every hour, big clots, bleeding over 7 days.
Signs of low iron: tiredness, pale skin, dizziness, hair fall.
Eat iron foods with vitamin C and see a doctor for a blood test.
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Last reviewed: 31 October 2026 · About and sources
Sources
Compiled from these public health sources. This is education, not medical advice.