Silent Endometriosis: Why Some Women Have Stage 3–4 Disease With Minimal Pain

When most people think of endometriosis, they imagine debilitating pain — cramps so severe they leave women bedridden, unable to work, study, or carry out basic daily activities. While this is true for many patients, there is a lesser-known reality that often goes unaddressed: some women with advanced Stage 3 or Stage 4 endometriosis experience little to no pain at all.

This phenomenon — known as “silent endometriosis” — is not only medically significant but dangerously misleading. It challenges the widely held belief that pain is the primary indicator of disease severity. For thousands of women across Mumbai, India and around the world, the absence of pain becomes a reason to delay diagnosis — often until the disease has already caused irreversible damage to the reproductive organs.

What Is Silent Endometriosis?

Endometriosis is a chronic condition in which tissue similar to the uterine lining (endometrium) grows outside the uterus — on the ovaries, fallopian tubes, bladder, bowel, or other pelvic structures. Each month, this tissue responds to hormonal changes, causing inflammation, scarring, and the formation of adhesions.

In silent endometriosis, the disease progresses through its stages without triggering significant pain signals. The woman may live her life completely unaware that her body is quietly being affected — until she tries to conceive, undergoes imaging for an unrelated condition, or presents with organ-related symptoms. At Nalini Speciality Hospital in Mumbai, India, we see this pattern far more often than most people realise.

Staging in endometriosis (Stage 1 to Stage 4) is based on the location, extent, and depth of the implants — not on pain levels. This is a critical distinction that many patients and even some clinicians are unaware of.

Why Does Endometriosis Not Always Cause Pain?

The relationship between endometriosis and pain is complex and not fully understood. Several factors contribute to why some women feel little or no pain:

• Location of lesions: Endometrial implants on the ovaries or deep in the pelvis may not irritate pain-sensitive nerve endings in the same way superficial lesions do.
• Individual pain tolerance and neurological differences: Each woman’s nervous system processes pain signals differently. Some have a naturally higher threshold.
• Absence of nerve involvement: If lesions do not involve nerve-rich areas, significant pain may not be triggered.
• Hormonal environment: Some women’s hormonal profiles may reduce inflammatory responses, dampening pain perception.
• Psychological adaptation: Women who have lived with low-grade discomfort for years may normalise it, not recognising it as abnormal.

The Dangerous Myth: “No Pain Means No Problem”

This myth is perhaps the most harmful in the world of endometriosis. Across clinics and households in Mumbai and throughout India, women are routinely dismissed with statements like “Your periods are regular, so you must be fine” or “If something was seriously wrong, you would be in pain.”

The reality is starkly different. A woman may present with Stage 4 endometriosis — with bilateral ovarian endometriomas (chocolate cysts), dense pelvic adhesions, and blocked fallopian tubes — and still report only mild bloating or occasional backache. By the time she seeks evaluation for infertility, the window for conservative management may have passed.

At Nalini Speciality Hospital, Mumbai, we regularly see patients who were undiagnosed for 5 to 10 years, simply because they did not have the “expected” level of pain. This diagnostic gap is not just unfortunate — it is a systemic failure that we are committed to addressing.

How Is Silent Endometriosis Discovered?

Silent endometriosis is often discovered incidentally or during investigation for other concerns. Common discovery pathways include:

• Infertility workup: Many women only discover they have advanced endometriosis when they are unable to conceive and undergo a thorough evaluation.
• Routine pelvic ultrasound: An ultrasound done for another reason may reveal ovarian cysts (endometriomas) characteristic of endometriosis.
• Laparoscopy for other conditions: During surgery for appendicitis or ovarian cysts, endometrial implants may be found unexpectedly.
• Bowel or bladder symptoms: Cyclical constipation, blood in urine, or rectal bleeding may prompt investigation that leads to an endometriosis diagnosis.
• Abnormal CA-125 levels: Though not a definitive test, an elevated CA-125 can be an early indicator warranting further investigation.

Signs to Watch For — Even Without Pain

If you have minimal pain but experience any of the following, it is worth speaking to a specialist:

• Irregular or heavy menstrual bleeding
• Difficulty conceiving after 6–12 months of trying
• Bloating that worsens around your period
• Fatigue that feels disproportionate to your lifestyle
• Mild but recurrent pelvic pressure or discomfort
• Pain during intercourse (even if only occasional)
• Cyclical bowel or bladder changes

These signs, even without significant pain, may be your body’s subtle way of signalling that something needs attention. Women in Mumbai, India often reach us after months of being told their symptoms are “normal” — please do not let that be your story.

Diagnosis: Why a Specialist Matters

How Is Silent Endometriosis Diagnosed?

Endometriosis cannot be diagnosed through blood tests or standard ultrasounds alone. A high-resolution transvaginal ultrasound performed by an experienced sonologist can detect ovarian endometriomas and some deep lesions. However, the gold standard for diagnosis remains diagnostic laparoscopy — a minimally invasive surgical procedure that allows direct visualisation and biopsy of lesions.

At Nalini Speciality Hospital in Mumbai, India, we employ a comprehensive diagnostic approach — combining clinical evaluation, advanced imaging, and where necessary, laparoscopic assessment — to ensure that no case of silent endometriosis goes undetected.

Treatment Options for Silent Endometriosis

Even if you are not experiencing significant pain, treatment may still be necessary to:

• Preserve your fertility before further damage occurs.
• Remove or reduce endometriomas that may rupture or grow.
• Prevent adhesion formation that can affect organ function.
• Reduce the risk of disease progression.

Treatment Approaches

• Hormonal therapy: Oral contraceptives, progestins, or GnRH analogues to suppress disease activity.
• Excision surgery: The preferred surgical approach for removing endometrial implants thoroughly, with a lower recurrence rate than ablation.
• Fertility-preserving surgery: For women who wish to conceive, careful surgical planning ensures reproductive organs are protected.
• Ongoing monitoring: Regular ultrasounds and clinical reviews to track disease status.

Listen to Your Body — Not Just Your Pain

The message is clear: endometriosis does not always announce itself with pain. Waiting for severe symptoms before seeking evaluation can mean the difference between early intervention and complex, life-altering consequences.

If you have any of the subtle signs mentioned above, or if endometriosis runs in your family, please do not wait for the pain to become unbearable. Early diagnosis is your most powerful tool.

Women deserve answers — not dismissal. If you are based in Mumbai, India and are concerned about your symptoms, reach out to Dr. Vivek Salunke at Nalini Speciality Hospital. We take every symptom seriously, because we know that silence is not always safety.

About Dr. Vivek Salunke
Dr. Vivek Salunke is a senior laparoscopic surgeon based in Mumbai, India, with over 20 years of experience in endometriosis and fertility-preserving surgery.
He leads the Endometriosis & Pelvic Pain Centre and is known for his ethical, patient-centered care and advanced excision techniques.