If endometriosis is part of your story, you may already have been told your pelvic floor is "overactive," "hypertonic," or even in spasm. They're the same picture in different words: the muscles aren't switching off when they should. It's a confusing thing to hear when you're already managing pain, fatigue, and a calendar full of appointments. Most of the conversation about pelvic floors online is also pulling in the opposite direction, all "do your Kegels" energy.

Here's the short version. Yes, endometriosis and an overactive pelvic floor go together far more often than the textbooks let on. And yes, it's treatable. But the path looks very different to "strengthen and squeeze."

Let's walk through what's actually happening, why your body has done this, and what helps.

What are the pelvic floor muscles, really?

The pelvic floor is a layered group of muscles that sits like a hammock from your pubic bone at the front to your tailbone at the back. There are deeper muscles forming the main supportive sling, and more superficial muscles wrapping around the openings of the bladder, vagina, and rectum.

When they're working well, you barely notice them. They quietly hold your pelvic organs in place, keep you continent when you cough or laugh, and contract and release for sex and bowel movements without you thinking about it.

When they're not working well, they make themselves very, very known.

Most public information assumes "not working well" means weak. Leaking when you sneeze, feeling heavy after running, that kind of picture. With endometriosis, the more common pattern is the opposite. The muscles aren't slack. They're locked on. And that brings its own list of problems.

Can endometriosis cause an overactive pelvic floor?

Yes. It's one of the most common findings we see in the clinic when someone with endo is referred for pelvic floor assessment.

The mechanism is straightforward, even if the experience is anything but. Pain teaches your body to brace, especially repeated, predictable pain like cyclical period pain or pain with sex. Your nervous system reads "danger" and tightens the muscles around the painful area as a protective reflex. It's the same reason people clench their jaw with a headache, or lift their shoulders to their ears when they're stressed.

Do that once a month, every month, for years, and the pelvic floor stops switching off between flares. It just stays on. What started as guarding becomes the new resting tone.

There's a second piece too. Your bladder, bowel, uterus and pelvic muscles share nerve pathways and live in close quarters. One spot worth knowing about: the Pouch of Douglas, the small pocket of peritoneum that sits between the uterus and the rectum. It's one of the most common sites for endometriosis lesions, and it sits directly above the pelvic floor. When the area is inflamed, the muscles immediately underneath it tighten in sympathy.

That's part of why a flare can show up as deep pain with sex (something pressing on a sore spot you can't see), sharp pain on the toilet, bladder urgency, or pelvic muscle spasm during a period, even when the lesion itself isn't on the muscle.

Both things feed into each other: the protective bracing and the inflammation-driven cross-talk. These are real, physical reflex patterns, not something you're imagining or causing by overthinking.

How can I tell if my pelvic floor is hypertonic?

A proper diagnosis comes from an internal pelvic floor assessment with a pelvic health physiotherapist. Self-checking has limits. But there are patterns that should put it on your radar:

Slow or uncomfortable urination - you stand up to leave the bathroom and feel like you didn't fully empty, or the stream starts and stops.
Constipation, straining, or pain on the toilet - you feel everything is "stuck behind a wall."
Painful sex (dyspareunia) - especially deep pain, but also burning at the entrance or pain with anything penetrative including tampons or a speculum.
A heavy, sore, or aching feeling around the vagina - particularly during your period, or by the end of a long day.
Pain in the lower back, groin, hips, or tailbone - that doesn't quite match a typical musculoskeletal pattern.
Cramping with orgasm - or a noticeable flare-up afterwards.
A constant low-level ache - the kind that's been there so long you stopped noticing.

The common thread through all of these is the same: the pelvic floor muscles aren't switching off when they should. If even one or two of these sound familiar and you have endo (or suspect you do), an assessment is worth booking.

Why "doing your Kegels" can make this worse

This is the bit we most often have to unlearn with new patients. Generic pelvic floor advice (squeeze, hold, repeat) is designed for a weak, lengthened muscle that can't produce force. If your muscle is already short, tight, and over-contracted, asking it to contract harder is like asking someone with a clenched fist to clench more.

It doesn't help, and for a lot of people it makes the pain worse.

The first job in an overactive pelvic floor is the opposite. Teach the muscle how to let go. Lengthen, soften, drop. Strength comes later, once the muscle has remembered how to release between contractions.

If you've been religiously doing Kegels and feeling worse, this is probably why. You're not failing at the exercise. The exercise is wrong for the problem.

How do you fix an overactive pelvic floor?

Treatment for overactive pelvic floor in endometriosis is a layered, gradual process, and it works best when it's led by a pelvic health physiotherapist who understands persistent pain. Most plans include some mix of the following:

Down-training breathing and stretches - using diaphragmatic breathing, hip-opening positions like child's pose and happy baby, and gentle inner-thigh and glute stretches to coax the pelvic floor into lengthening rather than gripping.
Manual therapy and dry needling - hands-on release or dry needling of tight muscles, either externally (around the hips, glutes, sacrum, thighs and abdomen) or internally, depending on what you're comfortable with.
Nervous system work - the nervous system is what's holding the muscle on, so calming it through paced breathing, vagal-tone work, and graded exposure is often as important as anything you do to the muscle directly.
Posture and toileting habits - small changes like using a toilet foot stool to put your knees above your hips, not hovering over the seat, and not pushing or holding for too long can take a surprising amount of strain off the pelvic floor.
Biofeedback and EMG-based tools - real-time feedback on whether the muscle is genuinely relaxing helps when you can't feel the difference yourself. Many people are convinced their pelvic floor is relaxed and the screen says otherwise.
At-home tools to support release - including a pelvic wand for self-managed trigger-point release between sessions, and graded vaginal dilators for desensitising painful entry and rebuilding confidence with penetration. These work best under physio guidance, not in isolation.
Vibration tools - low-frequency vibration on the pelvic floor (internally) or across the hips, lower abdomen, and thighs (externally) can shift trigger points that don't respond to steady pressure. The Kiwi internal/external vibrating massager can help with this.
Depth limiters for partnered sex - if deep penetration is one of the triggers (it often is with endo, especially when there are pouch-of-Douglas lesions), a soft buffer like Ohnut takes the depth variable off the table while you work on the muscle pattern. A 2024 pilot RCT found Ohnut significantly reduced deep dyspareunia in women with endometriosis. It's a comfort tool, not a treatment, but it's one of the simplest interventions for collision-style pain.
TENS for pain that drives the bracing - a wearable TAP TENS unit on the lower abdomen or sacrum is well-supported for cyclical period pain and pelvic pain. It won't fix the pelvic floor pattern on its own, but breaking the pain cycle reduces the trigger that keeps the muscles guarded in the first place.
Heat, sleep, and pacing - boring but powerful. A warm pack across the lower abdomen, deliberate rest before periods, and not pushing through flares all reduce the load the pelvic floor is trying to brace against.

If a wand is part of the plan, working out angle, pressure and which spots are yours takes a bit of trial. Our guide on how to use a pelvic wand for trigger-point release covers the technique step by step.

What helps day-to-day, when a flare hits

A few things that come up again and again with patients during a flare:

Stop the squeeze drills - this is not the day for strengthening. Lengthen instead.
Warmth on the lower abdomen and lower back - persistent rather than scorching. A wheat pack reheated through the afternoon often beats a single hot bath.
Side-lying with knees supported by a pillow - takes load off the pelvic floor and the SI joints together.
Slow, low breaths into the belly - counting the exhale longer than the inhale (try 4 in, 6 out) settles the nervous system and gives the pelvic floor permission to drop.
Hydrate, but don't over-caffeinate - caffeine ramps up bladder urgency, which is the last thing an irritated pelvic floor needs.
Be specific with sex - if deep penetration is the trigger, say so and change the position. A soft depth limiter like Ohnut can take the depth variable off the table while you work on the muscle pattern. If everything is too much, postpone without guilt. Pain is information, not a test of stamina.

If you're earlier in the journey of working out what's going on, you might also find our guides on vaginismus and at-home strategies and what a pelvic wand is actually used for useful. They overlap heavily with overactive pelvic floor patterns. Our broader tight or painful pelvic floor collection groups the products we recommend most often for this picture.

When to see a pelvic floor physio

If any of this sounds like you, even one symptom, it's worth booking an assessment with a pelvic health physiotherapist who works with endometriosis or persistent pelvic pain. A few clinical pointers:

Look specifically for pelvic health physiotherapy, not just musculoskeletal physio.
The first appointment is an in-depth conversation about your history, plus some form of assessment. What that assessment looks like varies. It might be a real-time ultrasound, an external assessment, an internal assessment, or starting with bladder and bowel diaries, depending on what's most useful for what you've come in with. Whatever's done is consented step-by-step, and you can pause or stop at any point.
A good clinician will pace the assessment to your nervous system, not to a clock.
If sex, periods, or stress have been driving symptoms for more than a few months, push for a referral sooner rather than later. Persistent bracing is easier to unwind earlier in the pattern than later.
Not sure where to start? The Australian Physiotherapy Association's Find a Physio tool lists pelvic health physios across the country.

Pelvic pain like this is common. That doesn't make it normal, and it doesn't mean you have to live with it. There's a lot a pelvic health physio can do, and the earlier you book in, the easier the pattern is to unwind.

A final word

Endometriosis is heavy enough on its own. Adding "and your pelvic floor is also overactive" can feel like one more thing on a pile that was already unfair. But the pelvic floor piece is one of the most modifiable parts of the picture. The muscle pattern that got you here is learned, which means it can be unlearned. Most people get meaningful relief, not a complete reset every time, but enough to get sex, bowel movements, periods, and ordinary days back to feeling like yours.

Find a physio who knows pelvic pain. Stop fighting your pelvic floor and start listening to it. The two together change a lot.