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How Much Blood Do You Actually Lose During Your Period?

Many people who menstruate feel like they’re losing a huge amount of blood each month, but the reality might surprise you. Despite the perception that your period is like a never-ending faucet, the actual volume of blood loss is much smaller than it feels. Let’s break it down!

Disclaimer: The information provided here offers general guidelines and may not reflect everyone's experience. Each menstrual cycle is unique and can vary significantly due to factors like age, health conditions, lifestyle, and stress. Always consult with a healthcare professional for personalized advice.


How Much Blood Do You Lose?

On average, a person loses 30 to 60 ml (about 2 to 4 tablespoons) of blood during an entire period. Some people with lighter flows may lose as little as 10 ml, while those with heavier flows (known as menorrhagia) can lose over 80 ml in one cycle.

Breaking It Down by Flow

Curious about how much blood you’ve lost over the years?

Take a look at our Blood Loss Calculator.


Why Does It Feel Like More?

Your period consists of more than just blood — it includes uterine lining, mucus, and other fluids, which make it seem like you’re losing a lot more than you actually are. The thick consistency can also make blood loss feel heavier than it is in reality.


How Much Blood Over Time?

If you menstruate for about 5 days per cycle and have around 12 periods per year, here’s how much blood you lose over time:

Even though this sounds like a lot over time, the body is designed to handle this natural blood loss, and it quickly replenishes what’s lost.

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What If You’re Losing Too Much Blood?

If you experience extremely heavy bleeding (soaking through a pad or tampon every 1–2 hours, passing large blood clots, or having periods that last longer than 7 days), you may have menorrhagia. This can lead to iron deficiency anemia and other health concerns, so it’s worth discussing with a doctor.


Tips for Managing Blood Loss


Final Thoughts

While periods can feel like a bloodbath, the reality is that most people lose only a few tablespoons of blood per cycle. Understanding this can help ease worries and empower you to track your health more confidently.


Ready to start tracking your cycle? Download LadyLog today and take control of your menstrual health. With LadyLog, you can easily track your phases to better understand your unique cycle.