Your Period Isn't Just Blood. So What Actually Comes Out?
You've probably had hundreds of periods in your lifetime.
You've dealt with cramps, leaks, cravings, and the occasional period that shows up at the worst possible time.
But here's a question you might have never asked:
What's actually coming out of your body during your period?
If your answer is "blood," you're only partially right.
Because your period is a lot more interesting than you might think.
1. Surprise! Your Period Isn't Just Blood
Every month, your uterus prepares for the possibility of pregnancy by building up a soft, nutrient-rich lining called the endometrium.
When pregnancy doesn't occur, hormone levels drop, signaling your body to shed that lining.
And that's what your period really is.
Menstrual fluid contains a combination of:
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Blood: From small blood vessels in the uterine lining.
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Uterine lining tissue: Cells and tissue shed from the endometrium.
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Mucus: Secretions from your reproductive tract.
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Vaginal fluids: Natural secretions that mix with menstrual flow.
So technically, your period isn't simply bleeding.
It's your uterus shedding and renewing its lining as part of your menstrual cycle.
Pretty fascinating, right?
2. Why Is Period Blood Sometimes Thick, Slimy, or Jelly-Like?
Ever looked at your pad and wondered why your period doesn't always look like regular blood?
Sometimes it's watery. Sometimes it's thick. And occasionally, you might notice small, jelly-like clumps.
Here's why.
Menstrual fluid contains more than blood, and the mixture of tissue, mucus, and blood can create different textures.
You may also notice small blood clots, especially on heavier flow days.
These form when blood collects and begins to clot before leaving your body.
Small clots can be normal. But frequent large clots, particularly those around the size of a quarter or larger, deserve a conversation with your healthcare provider.
3. Your Period Can Change Color. And That's Usually Normal.
Here's something interesting.
Your period can look completely different on day one compared with day five.
And that doesn't necessarily mean anything is wrong.
Bright red: Usually indicates fresher blood that is leaving your body relatively quickly.
Dark red: Often appears when blood has taken longer to leave the uterus or vagina.
Brown: Typically older blood that has darkened over time. It's especially common toward the end of your period.
Pink: Can appear when a small amount of blood mixes with vaginal discharge.
Your period isn't supposed to look identical every day.
In fact, variations in color and consistency are common throughout the menstrual cycle.
4. Are You Actually Losing as Much Blood as You Think?
Here's another surprising fact.
Even though periods can feel incredibly heavy, typical menstrual blood loss is often only around 30–40 mL over an entire period.
That's roughly 2–3 tablespoons of blood.
Of course, the total amount of menstrual fluid can be greater because it also contains tissue and other secretions.
And menstrual flow varies considerably between individuals.
If you're soaking through a pad every hour for several hours, regularly passing large clots, or bleeding for more than seven days, it's important to seek medical advice.
5. Your Period Can Tell You Something About Your Health
Your period is more than a monthly inconvenience.
Changes in your menstrual cycle can sometimes provide clues about what's happening in your body.
For example, it's worth paying attention to:
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A sudden change in how heavy your period is
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Bleeding between periods
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Unusually severe menstrual pain
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Periods that become significantly irregular
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Bleeding that lasts much longer than usual
Not every change signals a health problem.
But understanding what's normal for you can help you recognize when something feels different.
And that awareness matters.
6. Here's Something Else Worth Thinking About: What Touches Your Body During Your Period?
We spend a lot of time thinking about what goes into our bodies.
The food we eat. The skincare products we use. The ingredients in our everyday essentials.
But what about the menstrual products we wear for hours at a time?
During menstruation, your vulvar skin is in frequent contact with pads and moisture, so comfort, fit, and the materials against your skin are worth considering.
That's one reason some women prefer reusable organic cotton pads.
At hannahPAD, we believe period care should feel comfortable, practical, and thoughtful.
Our reusable organic cotton cloth pads offer a washable alternative to disposable menstrual pads—helping you care for your period while reducing reliance on single-use products.
Because understanding your period is one thing. Choosing what works best for your body is another.
Explore hannahPAD Reusable Organic Cotton Pads
The Bottom Line
Your period isn't just blood.
It's a combination of blood, uterine tissue, mucus, and natural fluids—all part of your body's menstrual cycle.
The next time you notice a change in color, texture, or flow, you might understand a little more about what's happening.
And the more you understand your body, the more confidently you can care for it.
Your period has a story to tell. It's worth listening to.