The Endo-Midlife Connection: 5 Signs of Undiagnosed Endometriosis and Why Symptoms Don't Stop at Menopause – sanoMidLife

This article was created in partnership with sanoLiving clinicians for trusted, accurate information.

"You're too old for endometriosis. It goes away after menopause."

If a doctor has ever dismissed your pelvic pain with these words, you're not alone. For decades, the medical community believed that endometriosis (a condition where tissue similar to the uterine lining grows outside the uterus) simply disappeared when periods stopped.

We now know that belief was wrong.

In postmenopausal endometriosis, deep infiltrating disease and ovarian masses appear to be more common than superficial disease, and symptoms may emerge many years after menstruation has stopped. About 2-5% of cases of endometriosis occur after menopause, but this number likely underestimates the true prevalence because so many women go undiagnosed.

The truth is, endometriosis doesn’t always follow the rules we once thought it did. If you've been told your pain is "just part of getting older" or dismissed because you're past reproductive age, it's time to advocate for yourself. Here are five critical signs that endometriosis might be the real culprit behind your symptoms. Including in midlife and beyond.

Sign #1: Chronic Pelvic Pain That Never Really Left

The myth: Menopause cures endometriosis because falling estrogen levels starve the disease.

The reality: People with endometriosis often report symptom onset in their teens, yet diagnosis is commonly delayed by an average of 4 to 11 years.

Chronic pelvic pain is defined as discomfort in the pelvic area, lower abdomen, or lower back that lasts six months or more. Endometriosis is observed in 71 to 87 percent of women with chronic pelvic pain.

What It Feels Like

Women describe endometriosis-related pelvic pain in various ways:

Constant dull ache that worsens at certain times
Sharp, stabbing sensations
Deep pressure in the pelvis
Pain that radiates to the lower back, thighs, or abdomen
Discomfort that intensifies with physical activity, bowel movements, or intercourse

Why It Persists After Menopause

Endometriosis is currently considered an inflammatory disease, with non-surgical treatment targeted at the prevention of menstruation and hormonal therapy to limit disease progression and inflammation. However, 40% of women experience non-cyclical pelvic pain, meaning the pain isn't tied to menstruation at all.

Chronic pelvic pain can lead to neurological changes in the dorsal horn of the spine, resulting in neurogenic inflammation affecting multiple pelvic organs, hyperalgesia, dysreflexia, a lowered sensory threshold, and therefore an increased perception of pain. In other words, long-standing endometriosis can rewire the nervous system, allowing pain to persist even when hormone levels decline.

Symptomatic and clinically progressive endometriosis after menopause in the absence of increased systemic estrogen concentrations or exogenous estrogen intake starts more than 10 years after menopause in the majority of women. This suggests that some endometriosis can grow independently of estrogen, a finding that challenges everything we thought we knew.

Sign #2: Painful Sex That's Dismissed as "Normal Aging"

Dyspareunia (painful intercourse) is one of the most common yet overlooked symptoms of endometriosis, with more than two-thirds of respondents with endometriosis reporting pelvic pain during intercourse or within 24 hours afterward.

What Makes Endometriosis Pain Different

While vaginal dryness from declining estrogen can cause discomfort during intercourse, endometriosis pain has distinct characteristics:

Deep pain rather than surface irritation
Pain that worsens with deeper penetration
Discomfort that lingers for hours or days after sex
Pain in specific positions due to lesion location
Associated pelvic pressure or cramping

Regarding the management of pelvic pain in a postmenopausal woman using menopausal hormone therapy, there are no clear guidelines. This lack of guidance means many women struggle to get appropriate care.

The Connection People Don’t Talk About Enough

The clinical features of postmenopausal endometriosis include persistent or recurrent pelvic pain, dyspareunia, bowel, or urinary symptoms and, occasionally, abnormal vaginal bleeding. When endometriosis affects the cul-de-sac (the space between the uterus and rectum) or causes adhesions, sexual activity can stretch these lesions or scar tissue, triggering significant pain.

Sign #3: Bowel Problems That Mimic IBS

One of the most frequently misdiagnosed aspects of endometriosis is its gastrointestinal impact. In post-reproductive years, endometriosis symptoms can be more varied than they are in people of childbearing age, often resembling symptoms of gastrointestinal tumors or urinary tract diseases.

Common Bowel Symptoms

Symptoms of bowel endometriosis include painful bowel movements, bloating, constipation, diarrhea, and rectal bleeding during menstruation. But here's the catch: in postmenopausal women without periods, these symptoms may occur cyclically anyway or become constant.

Women with bowel endometriosis report:

Severe pain with bowel movements: often described as "razor-blade" sharp
Constipation that worsens around the time menstrual periods used to occur
Diarrhea alternating with constipation
Bloating and abdominal distension
Feeling of incomplete evacuation
Rectal bleeding (rare but serious)
Nausea

Why It's So Often Misdiagnosed

Many endometriosis patients who report gastrointestinal symptoms are often misdiagnosed with diseases such as inflammatory bowel syndrome, Crohn's disease, and appendicitis. This happens because:

Endometriosis lesions on the bowel can't be seen during colonoscopy since they grow on the outside of the intestines
Symptoms overlap significantly with IBS, celiac disease, and inflammatory bowel disease
Most gastroenterologists don't routinely consider gynecological causes for bowel symptoms
When bowel or bladder symptoms occur in individuals with endometriosis, the severity of their endometriosis does not always correlate to the severity of any bowel or bladder issues they may have

Endometriosis can affect any portion of the bowel, but the most common location is in the pelvis. The portion of the bowel in the pelvis is the sigmoid colon and the rectum.

Sign #4: Bladder Issues Mistaken for UTIs or "Overactive Bladder"

When endometriosis affects the urinary tract, it most often involves the bladder or ureters. Yet bladder endometriosis remains one of the most overlooked forms of the disease.

Telltale Bladder Symptoms

The most common symptoms include frequent urination, pain with urination, urinary urgency and urinary retention. Specifically, women report:

Frequent urination (more than 8 times daily)
Sudden, intense urges to urinate
Pain or burning during urination
Pelvic pressure that worsens as the bladder fills
Blood in the urine during former menstrual cycles (rare)
Incomplete bladder emptying sensation

While these symptoms may occur only during your menstrual cycle, many patients experience these symptoms chronically, any time during the month.

The Diagnostic Challenge

Many of the respective symptoms may also appear to be similar to several other conditions, such as a bladder infection; kidney infection; pelvic inflammatory disease and interstitial cystitis. To further confuse matters, these other conditions can co-exist with endometriosis.

Bladder endometriosis is diagnosed by biopsy, where a portion of the endometrial implant is sampled from inside the bladder through a procedure called cystoscopy.

For women with clinical symptoms of bladder deep endometriosis (dysuria, urinary frequency, hematuria) a urinalysis test to exclude infection or hematuria should be conducted.

Why Postmenopausal Women Are at Risk

In postmenopausal patients, endometriosis is more common in those undergoing hormone replacement therapy or taking tamoxifen. If you're on Hormone Replacement Therapy (HRT) and developing new urinary symptoms, endometriosis should be on the differential diagnosis list. Not just aging or stress incontinence.

Sign #5: Unexplained Symptoms That Come and Go (Or Don't)

Postmenopausal endometriosis is unpredictable. The clinical presentation of endometriosis in menopausal patients is often non-specific, such as pelvic pain, ovarian cysts, or intestinal symptoms.

Other Signs to Watch For

Fatigue that seems disproportionate to activity level
Low back pain that radiates to the pelvis
Leg pain or sciatica-like symptoms (if endometriosis affects nerves)
Unexpected ovarian masses found on routine imaging
Any vaginal bleeding after menopause (always requires evaluation)

After menopause and postmenopause, you will not get periods, and you should not have any vaginal bleeding. Any vaginal bleeding after menopause should be discussed with a doctor.

The Hormone Therapy Dilemma

If you're considering or currently using menopausal hormone therapy (also known as Hormone Replacement Therapy or HRT) you need to understand its complex relationship with endometriosis.

How HRT Can Trigger or Worsen Endo

Experts think postmenopausal endometriosis is primarily caused by hormone replacement therapy, which some menopausal people undergo. The risk of malignant transformation of endometriosis is higher in this older population, especially in those undergoing estrogen-only hormone replacement therapy.

When prescribing menopausal hormone therapy for women with a history of endometriosis, clinicians must acknowledge the potential risk of increasing or recurring symptoms and even the theoretical risk for malignant transformation of endometriotic lesions.

Making Informed Decisions

If menopausal hormone therapy is considered necessary, combined estrogen-progestin preparations should be considered independent of hysterectomy instead of unopposed estrogens. This is because progesterone may help counteract estrogen's stimulating effects on endometrial tissue.

In one study evaluating safety of postoperative menopausal hormone therapy after endometriosis surgery, all cases of recurrence were successfully treated conservatively with either discontinuing the therapy or switching the type or dose of the treatment.

The Inflammation Connection

Endometriosis isn't just about rogue tissue. It's a systemic inflammatory disease. An abundance of proinflammatory cytokines and chemokines, angiogenic and nerve growth factors, neutrophils and pain mediators are present in endometriosis lesions and the surrounding peritoneal fluid, stimulated by the estrogen-dependent environment and resulting in a chronic local inflammation.

This chronic inflammation can:

Affect mood and contribute to depression
Worsen fatigue
Contribute to comorbid conditions like fibromyalgia and migraines
Cause systemic symptoms beyond pelvic pain

Patients with endometriosis tend to develop additional symptoms such as allergies, fibromyalgia, asthma, eczema, autoimmune inflammatory disease, chronic fatigue syndrome and hypothyroidism.

What to Do If You Recognize These Signs

1. Find the Right Specialist

Treatment for endometriosis is best carried out by a gynecologist with a specialist interest in endometriosis. This is because not all gynecologists have extensive experience diagnosing or treating endometriosis.

Look for:

A gynecologist specializing in endometriosis (not just general gynecology)
Centers with multidisciplinary teams (gynecology, urology, colorectal surgery)
Surgeons experienced in excision (not just ablation) techniques

2. Document Your Symptoms

Keep a detailed symptom diary including:

Type and location of pain
Pain intensity (use a 0-10 scale)
Timing relative to when you used to menstruate
Bowel and bladder patterns
Impact on daily activities and quality of life
Current medications, including HRT

3. Request Appropriate Testing

No serum marker or test is available for reliably diagnosing endometriosis, but imaging can be helpful. Ask about:

Transvaginal ultrasound performed by someone experienced in identifying endometriosis
Pelvic MRI with endometriosis protocols
Cystoscopy if you have bladder symptoms
CA-125 blood test (elevated in some cases, though not diagnostic)

Women with bladder endometriosis often have endometriosis at other anatomic sites; therefore, the initial history and physical assessment include speculum examination, tenderness on vaginal examination, nodules in the posterior vaginal fornix, adnexal masses, and immobility or lateral displacement of the uterus.

4. Understand That Diagnosis May Require Surgery

At present, the only way to definitively diagnose endometriosis and its stage of progress is by undergoing laparoscopic (keyhole) surgery. However, patients may be symptomatic, with chronic pelvic pain, or may receive the diagnosis after imaging performed for other indications such as an incidental ovarian lesion.

5. Consider All Treatment Options

Surgery is the main treatment for endometriosis in people who are postmenopausal if they have symptoms.

Treatment may include:

Surgical excision of lesions (preferred over ablation)
Aromatase inhibitors (medications that reduce estrogen production)
Progesterone therapy to suppress lesion growth
Pain management strategies (multidisciplinary approach)
Modification of HRT if you're currently taking it

Aromatase inhibitors are used as treatment, depending on the location of the lesion in postmenopausal women.

You Deserve to Be Heard

For many women living with endometriosis, the road to diagnosis and treatment can be long, painful and frustrating. Nearly three years of diagnostic delay is due to the person not presenting to their medical care provider and the remaining years between initial presentation to a doctor and a surgical diagnosis of endometriosis.

This delay often stems from the normalization of severe dysmenorrhea (painful periods or menstrual cramps), and the belief that even moderate to severe menstrual or pelvic pain is a normal part of being a woman.

But here's the truth: severe pelvic pain is never normal. Not in your reproductive years, not in perimenopause, and not after menopause.

Recurrence of endometriosis symptoms in a postmenopausal patient should always prompt rigorous evaluation, both in the presence and absence of hormonal treatment.

If your symptoms are dismissed, seek a second opinion. Find a specialist who listens. You know your body better than anyone else, and persistent pain deserves thorough investigation regardless of your age.

Endometriosis doesn't always follow the textbook.

Your symptoms are real. Your pain matters. And you deserve answers.

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