Understanding how much blood is lost during your period can help you know what’s normal and when to seek advice. Let’s explore typical menstrual blood loss per day and what variations to expect.
Average Blood Loss During Menstruation
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On average, a woman loses about 30 to 40 milliliters (ml) of blood over her entire period.
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This equals roughly 2 to 3 tablespoons of blood total.
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Periods typically last 3 to 7 days, so daily bleeding varies.
Daily Blood Loss Breakdown
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The heaviest days (usually Days 1-3) can see around 10-15 ml of blood per day.
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Lighter days toward the end of the period may have just a few milliliters or spotting.
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Bleeding tends to taper off gradually rather than staying constant.
What’s Considered Heavy Bleeding?
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If you lose more than 80 ml (about 5-6 tablespoons) of blood during your period, it’s classified as heavy menstrual bleeding (menorrhagia).
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Signs include soaking through a pad or tampon every hour for several hours or passing large clots.
Why Does Blood Loss Vary?
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Hormonal balance affects how much uterine lining sheds.
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Some women naturally have heavier or lighter flows.
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Health conditions like fibroids, polyps, or bleeding disorders can increase blood loss.
When to Talk to a Doctor
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If your flow is heavy enough to interfere with daily activities.
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If you pass clots larger than a quarter.
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If you feel dizzy, tired, or anemic during your period.
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If bleeding lasts longer than 7 days consistently.
Final Thoughts
Bleeding around 30-40 ml over your period is typical, with heavier flow in the first few days. Tracking your flow and knowing your body’s patterns helps you notice any changes that may require medical attention.
Looking for period products designed for different flow levels? Visit Nyx Collection to find pads, tampons, and menstrual cups that suit your needs.
Here’s a simple Flow Tracking Chart you can use to monitor your period day by day. You can print this out or recreate it in a notebook or digital app.
🩸 Period Flow Tracking Chart 🩸
| Day | Date | Flow Level (None / Spotting / Light / Medium / Heavy) | Products Used (Pad, Tampon, Cup, Pantyliner) | Notes (Clots, Pain, Mood, etc.) |
|---|---|---|---|---|
| Day 1 | ||||
| Day 2 | ||||
| Day 3 | ||||
| Day 4 | ||||
| Day 5 | ||||
| Day 6 | ||||
| Day 7 |
How to Use This Chart:
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Record the Date for each day of your cycle.
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Mark Your Flow Level: Choose one that best describes your bleeding that day.
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Write Down What Menstrual Products You Used: Helps track what works best for your flow.
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Add Notes: Jot down any clots, cramps, mood changes, or other symptoms.
Why Track Your Flow?
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Understand your average flow and cycle length.
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Spot unusual changes or heavy bleeding early.
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Choose the right products based on your flow needs.
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Provide your healthcare provider with accurate information if needed.
For comfortable and reliable period products to match any flow level, visit Nyx Collection.