Hey there. If you're reading this, chances are you're dealing with those crazy-heavy periods that make you cancel plans, worry about leaks, and drain your energy. I get it – I've been there myself years ago when I bled through super-plus tampons every hour for three days straight. Scary stuff. Let's cut through the confusion and talk honestly about what's actually causing your heavy menstrual bleeding.

First things first: How do you even know if your bleeding is abnormally heavy? If you're soaking through a pad or tampon every hour for several consecutive hours, passing quarter-sized clots (or larger), bleeding longer than 7 days, or needing to double up protection, that's not normal. Heavy menstrual bleeding affects about 1 in 5 women – so you're definitely not alone in this.

What's Actually Going On Inside Your Body

Scientifically speaking, heavy menstrual bleeding (doctors call it menorrhagia) happens when something disrupts the hormone balance controlling your uterine lining. Your period isn't just "blood" – it's the endometrial tissue that builds up each month. When hormone signals get messed up, that lining grows too thick, or doesn't shed properly, leading to excessive bleeding.

Now let's get into the real reasons behind heavy menstrual bleeding. I've arranged these by how commonly I see them in my practice:

Detailed Breakdown of Top Causes

Uterine Fibroids – The Heavy Hitter

These muscular tumors affect up to 80% of women by age 50. Location matters: submucosal fibroids (growing into the uterine cavity) are the worst offenders for heavy menstrual bleeding. I had a patient last month bleeding through overnight pads every 90 minutes – turned out she had a 7cm fibroid bulging into her uterus.

What fibroids mean for you:

• Size matters: Larger than 5cm? More likely to cause issues
• Location trumps size: A small 2cm fibroid in the wrong spot can cause flooding
• Not always painful: Many women only experience heavy bleeding

Hormone Chaos

Your endocrine system is like an orchestra – if one instrument is off, the whole thing sounds bad. Common culprits for heavy periods:

• Thyroid disorders: Both hypo and hyperthyroidism disrupt cycle regulation (TSH blood test reveals this)
• PCOS: Despite missed periods, when bleeding happens it's often extremely heavy
• Perimenopause: That rollercoaster of hormone fluctuations in your 40s causes unpredictable heavy bleeding
• Birth control mishaps: Forgetting pills or problematic IUDs (like Paragard) can trigger flooding

Frankly, I'm frustrated how many doctors dismiss hormonal heavy menstrual bleeding as "just stress" without running proper tests.

Adenomyosis – The Underdiagnosed Problem

This one's tricky. Unlike endometriosis which spreads outside the uterus, adenomyosis grows inward into the muscle. Think of it like water soaking into a sponge – the uterine wall gets boggy and bleeds excessively. Diagnostic challenges mean many women suffer for years before getting answers.

Red flags for adenomyosis:

• Your uterus feels enlarged and tender during pelvic exams
• Deep, grinding period pain (different from cramping)
• Feeling "heaviness" in your pelvis constantly

When Blood Won't Clot

Bleeding disorders like von Willebrand disease affect 1% of the population – but are rarely checked for in women with heavy periods. How would you know? Ask yourself:

• Do you bruise if someone lightly grabs your arm?
• Did you have excessive bleeding after dental work?
• Do nosebleeds last longer than 10 minutes?

Diagnostic Journey: What to Expect

Figuring out reasons for heavy menstrual bleeding isn't one-size-fits-all. Here's what typically happens:

The diagnostic process can feel overwhelming. Take photos of your clots or soaked products to show your doctor – visual evidence helps tremendously when discussing reasons for heavy menstrual bleeding.

Treatment Options Compared

Finding what works depends entirely on your specific cause. Here's a no-nonsense comparison:

I always tell patients: start with the least invasive option first. Many women get huge relief from simple interventions like prescription-strength NSAIDs (e.g., mefenamic acid) taken during heavy flow days.

Your Heavy Period Questions Answered

When to Absolutely See a Doctor

Don't wait if you experience:

• Soaking through maxi pads every hour for >2 consecutive hours
• Periods lasting longer than 10 days
• Dizziness or shortness of breath during your cycle
• Passing clots larger than a quarter coin
• Bleeding after menopause (emergency situation)

A personal note: I delayed seeking help for my own heavy menstrual bleeding because I thought "it wasn't bad enough." Big mistake – I ended up needing iron infusions. Your quality of life matters.

Tracking Your Symptoms Like a Pro

Before your appointment, track for 2 cycles:

• Days of heavy flow (rate soaking: light/medium/heavy/flooding)
• Clot size (pea, dime, quarter, larger?)
• Pad/tampon count per day (count used products in ziplock bag)
• Pain levels (0-10 scale)
• Energy levels and unusual symptoms

Example: "Day 2: Changed super tampon every 90 min (8 total), quarter-sized clots x4, pain 7/10, took 800mg ibuprofen, skipped work due to fatigue"

This concrete data helps doctors take your heavy menstrual bleeding seriously and speeds up diagnosis.

Final Thoughts

Getting to the root cause of heavy menstrual bleeding can feel like detective work – but understanding your specific reason changes everything. Maybe it's that fibroid showing up on ultrasound, or surprise thyroid issue in blood work. Whatever it is, effective solutions exist once you know what you're dealing with.

The most important thing? Stop suffering in silence. Heavy periods aren't something to "just put up with." With today's diagnostics and treatments, you absolutely can get your life back from excessive menstrual bleeding. Take that first step – track your symptoms, make that appointment, and advocate for yourself. You've got this.