What is the heaviest day of your period?

Great question! Most people notice their flow isn’t the same every day — it tends to start heavier and then taper off.

🔴 The Heaviest Day of Your Period

  • For most women, the heaviest bleeding happens on day 1 or day 2 of their period.

  • This is because the uterine lining (endometrium), which built up during the cycle, begins to shed in larger amounts.

  • Hormones like prostaglandins are also at their peak, which makes the uterus contract more strongly — leading to heavier flow and often more cramps.

🌸 What to Expect on Heavy Days

  • You may need to change pads, tampons, or a menstrual cup more often (every 3–4 hours).

  • Blood may look brighter red with occasional clots (small clots are usually normal).

  • Cramps, bloating, or back pain are often more noticeable.

⚠️ When It’s Too Heavy

If you:

  • Soak through a pad/tampon every 1–2 hours,

  • Pass large clots (bigger than a quarter),

  • Or feel dizzy or weak,

👉 this may be menorrhagia (abnormally heavy periods) and you should talk to a doctor.

✅ Summary:
The heaviest day of your period is usually day 1 or 2, when the uterine lining sheds most intensely. After that, flow gradually lightens until your period ends.

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