GLP-1s Are Everywhere Right Now. Here’s What Nobody Is Telling You About Your Pelvic Floor.

Ozempic. Wegovy. Mounjaro. You’ve heard the names. Maybe you’re taking one. Maybe you’re thinking about it. Maybe your doctor brought it up, or a friend lost 40 pounds and you’ve started doing your own research.

GLP-1 receptor agonists have become one of the most widely discussed medications in the country, and for good reason, they work. For the right person, they can meaningfully shift metabolic health, reduce weight, improve insulin sensitivity, and in some cases, restore ovulation in women who haven’t had a regular cycle in years.

But there is a part of this conversation that is almost never happening in the exam room, and it directly affects your quality of life: what GLP-1 medications do to your pelvic floor.

I’m not here to tell you not to take them. I’m here to make sure you know what to watch for and what to do about it.

A Quick Refresher on How GLP-1s Work

GLP-1 (glucagon-like peptide-1) receptor agonists work primarily by mimicking a gut hormone that regulates blood sugar, slows gastric emptying, and signals fullness to the brain. They were originally developed for type 2 diabetes management and have since been approved for weight loss and cardiovascular risk reduction.

They are effective. About 1 in 8 U.S. adults reported using a GLP-1 medication as of late 2025, and women are more likely than men to be using them for weight loss.

But GLP-1s affect far more than blood sugar and appetite. They slow digestion throughout the entire GI tract, influence lean muscle mass, alter fat distribution, and interact with reproductive hormones, all of which have real implications for pelvic floor function.

The Pelvic Floor Effects Nobody Is Warning You About

Muscle mass loss

This is the one that concerns me most as a pelvic floor PT. Research shows that up to 30% of weight lost with GLP-1 medications is from lean muscle mass, not fat. The pelvic floor is skeletal muscle. It is not exempt from that loss.

For women who are already dealing with pelvic floor dysfunction (stress urinary incontinence, prolapse, pelvic heaviness, etc.) losing muscle mass without targeted pelvic floor rehabilitation can make those symptoms significantly worse, even as the number on the scale goes down. Weight loss alone is not protective if the muscles underneath aren’t being maintained and strengthened alongside it.

GI side effects that land in the pelvic floor

Constipation, bloating, nausea, and diarrhea are among the most commonly reported side effects of GLP-1 medications. All of them involve the pelvic floor.

Chronic straining during constipation increases intra-abdominal pressure and can worsen prolapse or stress incontinence. Diarrhea urgency challenges pelvic floor coordination and sphincter control. Bloating and distension affect breath mechanics and deep core pressure management which the pelvic floor depends on to function well.

If you are managing these GI symptoms in isolation (more fiber, more water, antidiarrheal medications), you may be missing the pelvic floor piece of why they’re not fully resolving.

Changes to fat distribution in urogenital tissue

Emerging research and clinical reports are highlighting something that catches many patients off guard: significant weight loss changes the fat tissue in the vulva and labia. Fat loss in the labia majora can cause tissue to become thinner, less cushioned, and more sensitive which can contribute to discomfort during sex, exercise, or even just wearing pants. For postmenopausal women or those with already-low estrogen, this effect is compounded.

This isn’t talked about. Most prescribers aren’t bringing it up. But it is real, and there are solutions.

Fertility effects, the part that requires a plan

For women with PMOS (formerly PCOS), GLP-1s can be genuinely helpful for fertility. By improving insulin sensitivity and reducing elevated androgens, they can help regulate hormonal signaling, restore ovulation, and improve response to fertility treatments.

Here’s the important part: GLP-1 medications should not be taken during pregnancy, and most clinical guidelines recommend stopping them at least two months before attempting to conceive. But because they can restore ovulation in women who haven’t been ovulating regularly, unintended pregnancy is a real and documented risk. This is not a hypothetical, it is happening, and it has been covered extensively in clinical and mainstream media as the “Ozempic baby” phenomenon.

If you are taking a GLP-1 and not actively trying to conceive, contraception planning is part of the conversation. And if you are planning to conceive, there is a window of transition, off the medication, body stable, pelvic floor prepared, that matters for how your pregnancy and postpartum recovery go.

What Pelvic Floor PT Looks Like Alongside GLP-1 Therapy

I’m not suggesting everyone on a GLP-1 needs to come see me. But I do think pelvic floor PT is underutilized as a complement to these medications, especially for women who are:

- Already dealing with leaking, urgency, or prolapse symptoms

- Using GLP-1s specifically for PMOS management

- Planning to come off the medication in preparation for pregnancy

- Experiencing constipation, bloating, or bowel changes that aren’t resolving

- Noticing new or worsening symptoms in the pelvic region alongside weight loss

In treatment, I address the muscle loss component directly through targeted pelvic floor strengthening and coordination training, not just Kegels. I help manage the GI side effects through breathwork, bowel retraining, and toileting mechanics. I address the tissue changes with education and appropriate manual therapy. And for women preparing for pregnancy after stopping a GLP-1, I help build the foundation that makes that next chapter go better.

You Deserve the Full Picture

GLP-1s are a legitimate tool. They are not a quick fix, and they are not without complexity, especially for women, and especially for women whose pelvic floors are already working overtime.

If you are taking one of these medications and experiencing symptoms in your pelvis, your bladder, your bowels, or your sexual function, please don’t assume it’s just a side effect you have to live with. A lot of what is being written off as an unavoidable consequence of the medication is actually addressable.

Your pelvic floor is part of this story. Let’s make sure it’s getting the attention it deserves.

Ready to take the first step? Book your free consultation at <https://app.pteverywhere.com/woven/bookingonline>. Woven Pelvic Health and Wellness is located in Denver, CO and serves women throughout the Denver metro area.

Dr. Ashley Castellanos, PT, DPT is the owner and founder of Woven Pelvic Health and Wellness in Denver, Colorado. She specializes in pelvic floor physical therapy for women across all stages of life, with advanced training in manual therapy, dry needling, orthopedics, and trauma-informed care.

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