Think It’s Just IBS? Experts Say These Symptoms Could Actually Signal Endometriosis

Endometriosis is often mistaken for Irritable Bowel Syndrome (IBS) because both conditions can cause bloating, abdominal discomfort, constipation, diarrhoea, and nausea.

However, health experts warn that when digestive symptoms repeatedly worsen around the menstrual cycle, the real cause may be a gynaecological condition rather than a gut disorder.

Medical professionals say this overlap is one of the key reasons why many women experience delayed diagnosis and treatment for endometriosis.

What Is Endometriosis?

Endometriosis occurs when tissue similar to the lining of the uterus grows outside the uterus.

These growths can develop on:

• ovaries
• fallopian tubes
• pelvic lining
• bladder
• and even parts of the bowel or intestine

The condition can lead to:

• inflammation
• severe pelvic pain
• scar tissue formation
• fertility complications
• and digestive symptoms.

Why Endometriosis Is Commonly Misdiagnosed as IBS

According to experts, bowel-related symptoms appear because endometrial tissue can affect the pelvic region and nearby digestive organs.

As a result, women may initially receive treatment for IBS instead of the underlying condition.

Professor Sangeetha K from the Department of Obstetrics and Gynaecology at Srinivas Institute of Medical Sciences and Research Centre says the symptom overlap often creates confusion during diagnosis.

Key Symptoms That May Point to Endometriosis Instead of IBS

1. Chronic Bloating (‘Endo Belly’)

Occasional bloating is common, but persistent bloating accompanied by:

• pelvic pain
• abdominal heaviness
• excessive gas

may indicate endometriosis.

Doctors say a major clue is timing.

If bloating:

• worsens before periods
• appears during menstruation
• or follows a monthly cycle

it may be hormonally linked rather than purely digestive.

2. Alternating Diarrhoea and Constipation

Changes in bowel habits are often associated with IBS.

However, in endometriosis:

• lesions may irritate the bowel
• pelvic inflammation may affect digestion
• symptoms often intensify around menstruation.

Unlike IBS, which may be triggered by stress or food, endometriosis-related symptoms often show a cyclical pattern.

3. Pain During Bowel Movements

Painful bowel movements — especially during periods — can be a major warning sign.

Experts say this may occur when endometrial tissue affects:

• the pelvic cavity
• rectum
• or lower bowel region.

Severe pain during defecation should not be dismissed as routine constipation or acidity.

4. Nausea and Vomiting Around Menstruation

Some women experience:

• nausea
• vomiting
• digestive discomfort

alongside worsening pelvic pain during the menstrual cycle.

Doctors say these symptoms may result from hormonal inflammation associated with endometriosis rather than a stomach infection or food intolerance.

Other Common Symptoms of Endometriosis

Apart from digestive symptoms, endometriosis may also cause:

• severe menstrual cramps
• heavy bleeding
• chronic pelvic pain
• lower back pain
• pain during intercourse
• fatigue
• fertility issues.

Why Early Diagnosis Matters

Experts stress that delayed diagnosis can lead to:

• worsening pain
• scar tissue formation
• fertility complications
• emotional stress
• and reduced quality of life.

Studies globally suggest many women live with symptoms for years before receiving a proper diagnosis.

How Endometriosis Is Diagnosed

Doctors may use:

• pelvic examinations
• ultrasound scans
• MRI imaging
• laparoscopy (minimally invasive surgery)

to confirm the condition.

Because symptoms overlap with digestive disorders, multidisciplinary evaluation is often necessary.

When Should You See a Doctor?

Experts recommend consulting a gynaecologist if:

• digestive symptoms repeatedly worsen around periods
• menstrual pain interferes with daily life
• over-the-counter treatments fail
• bloating becomes chronic
• or bowel pain becomes severe.

Endometriosis Awareness in India

Health experts estimate that Endometriosis affects millions of women in India, though awareness and diagnosis rates remain relatively low.

Doctors say recognising symptom patterns — especially those linked to menstruation — is critical for early intervention and better treatment outcomes.