Pelvic Floor Muscles

Everything You Never Knew About Your Pelvis

Sep 14, 2023

Hey, Congrats! You Have a Pelvis!

If you are a living, breathing human, you have a pelvis.  But not many of us know what our Pelvis is…we don’t know what it’s made out of, what’s inside of it, and how it works.

Allow me to step in :) My name is Dr. Kelly Sadauckas, one of a handful of Doctors of Physical Therapy in the world who are double board certified in Pelvic Health and Orthopedics.  Today, I’d like to demystify your pelvis!

Let’s start at the beginning, shall we?

What do you mean when you say Pelvis? Good Question: What do we mean? 

When we say Pelvis, we could mean 3 things:

1. The Bony Parts

The “bony pelvis” (as we pelvic pros refer to it) is made up of your hip bones and your sacrum. Your sacrum is the triangle-shaped bone at the bottom of your back, and it ends in your coccyx, which is the remaining tail parts of our mammalian heritage. 

Your “hip bones” are actually three bones fused together. Those three bones are the ilia (the big wingy parts), ischium (sit bones) and pubic bones (front crotch bones). 


2. The Pelvic Organs (Peritoneal Cavity)

This is the stuff inside the Pelvis, so is the ‘lower’ organs inside our belly. The liver, stomach, etc, live above the Pelvic Region. 

The small intestines (where food is broken down), large intestines (where poop is made), and bladder (where pee is stored) exist in all pelvises.  “Pelvic Viscera” is also a fancy term used to describe the organy-stuff that is in here.

If you have a penis, you also have a prostate gland in here, and if you have a vagina, you have one uterus and two fallopian tubes and ovaries (usually–fun fact, sometimes you can have more than one uterus! Read this blog post to learn more)


3. The Pelvic Muscles and Ligaments

The third thing we could mean when we talk about the pelvis, is our connective tissue! The stuff that holds the bones together, the organs in place, and that moves the stuff around!

The Pelvic Floor Muscles are awesome.  They make this pelvis a three-dimensional bowl, and hold all or our organs in, as well as control what we put in, or let out, of our body. Without the pelvis muscles, our insides would fall out. Frown Face. 

The pelvic ligaments provide passive stability (like braces) to the bony pelvis, and provide a stable base for the muscles to move from. In the pelvis, the ligaments also often carry nerves and blood vessels.


Did you know there is more than one Pelvic Floor Muscle?

Just like you have a left leg and a right leg, and they each have unique muscle control and strength, your pelvic floor muscles have left groups, and right groups–more than 6 per side, actually!

And these muscles all have different functions!

Some of these muscles work to constrict (close) the urethra (pee hole), some to constrict (close) the poop hole (anus), some pull the tailbone toward your pubic bone, and others scoop and lift the whole shebang of pelvic floor, like tightening up a trampoline or a hammock. This blog post goes over their function in depth (link to me explaining PFM various roles)

And these muscles work together to control 2-3 very delicate openings, as well as affect our overall digestion, stress and athletic prowess. 


Changes in how the pelvic muscles function can lead to pee, poop and seggsy time problems!

Dysfunction in the pelvic floor muscles themselves, and in how we coordinate (or use) the pelvic muscles along with other muscle groups in our day to day lives, leads to pee, poop or seggsy time problems. 

 And yes, if you’ve been around my site for more than a minute, you’ve noticed that the primary way that pelvic floor muscles cause problems is NOT that they are loose and flimsy and weak…but that they are actually too tight all the time , and therefore not healthy and weak.

This blog post is the tip of the iceberg, and introduces you to your pelvis, potentially for the first time.  If you’re new here, and struggling, go ahead and give your pelvis (or vag, or rectum, or whatever is bothering you), a name, so we can talk to them directly as we proceed.

The most important thing for you to know is that whatever your pee, poop or seggsy time problem is, you are not alone, and you are not permanently broken.  There are real muscles involved here, just like muscles are involved in low back pain, and it is worth investing your time and energy to reconnecting those muscles to your brain.  YOU DESERVE THE PELVIS OF YOUR DREAMS.

Thanks for Reading!

Ready to learn more?!  Let’s check out this blog post on Everything You Never Knew About Your Pelvic Floor Muscles

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Xoxo -Dr. Kelly





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