Endometriosis is often described as “bad periods”, but that does not explain the reality of the condition.

Painful periods can be one symptom of endometriosis, but endometriosis is not simply a period problem. It is a chronic inflammatory condition where tissue similar to the lining of the uterus is found elsewhere in the body. This tissue can form lesions, cause inflammation, create scar tissue and adhesions, affect organs and nerves, and have a major impact on daily life.

For some people, symptoms are worse around their period. For others, symptoms happen throughout the month. Some people have bowel, bladder, nerve, fatigue, fertility or whole-body symptoms that are not immediately recognised as being linked to endometriosis.

This is why it is important not to dismiss endometriosis as “just period pain”.

Why the phrase “bad periods” can be harmful

Many people with endometriosis are told that pain is normal.

They may hear things like:

  • “Periods are meant to hurt.”
  • “Everyone gets cramps.”
  • “You just have a low pain threshold.”
  • “It will get better when you have children.”
  • “You are too young to have anything serious.”
  • “Your scans are normal, so nothing is wrong.”

These messages can delay diagnosis and stop people asking for help.

Period pain that regularly stops someone going to school, work, social events, exercise or normal daily activities should not be brushed aside. Pain that causes vomiting, fainting, exhaustion, severe distress or the need to plan life around a menstrual cycle deserves proper medical attention.

Pain is information from the body. It should be listened to.

Endometriosis can affect more than the uterus

Endometriosis involves tissue similar to the lining of the uterus, but it is found outside the uterus.

This tissue may be found on or around pelvic organs and tissues, but endometriosis can also be found outside the pelvis. It can involve areas such as the bowel, bladder, ureters, diaphragm, lungs, abdominal wall, surgical scars, nerves and other sites.

This means symptoms can show up in different ways depending on where the disease is and how the body responds to it.

Endometriosis can be linked with:

  • pelvic pain
  • severe period pain
  • pain outside periods
  • bowel symptoms
  • bladder symptoms
  • pain during or after sex
  • fatigue
  • nausea
  • fertility difficulties
  • back, hip, groin or leg pain
  • nerve-like pain
  • shoulder, chest or breathing symptoms in some cases
  • emotional and mental health impact

Some people have symptoms that follow a clear cycle. Others do not. Some people have severe symptoms even when scans do not show obvious disease.

Pain can happen outside the period

A common misunderstanding is that endometriosis only causes pain during bleeding.

Some people do have symptoms that are strongest before or during a period. But endometriosis-related pain can also happen:

  • around ovulation
  • before bleeding starts
  • after bleeding ends
  • during bowel movements
  • when passing urine
  • during or after sex
  • with exercise or movement
  • after sitting for long periods
  • during flare-ups
  • every day or most days

Pain outside a period can be confusing. People may be told it is digestive, muscular, stress-related or unexplained. Sometimes those things may also be part of the picture, but endometriosis should be considered when symptoms are persistent, cyclical, worsening, or affecting daily life.

Endometriosis can affect the bowel and bladder

Endometriosis can be linked with bowel and urinary symptoms.

Bowel symptoms may include:

  • pain when opening the bowels
  • constipation
  • diarrhoea
  • bloating
  • rectal pain
  • pain before or after a bowel movement
  • feeling like the bowel has not fully emptied
  • cyclical bowel symptoms
  • rectal bleeding in some cases

Bladder and urinary symptoms may include:

  • pain when passing urine
  • bladder pressure
  • needing to wee more often
  • urgency
  • pain when the bladder is full
  • pain after emptying the bladder
  • blood in the urine, especially if cyclical
  • symptoms that feel like repeated urine infections

Bowel and bladder symptoms are sometimes mistaken for other conditions. It is possible to have more than one condition at the same time, so symptoms should be assessed properly.

Endometriosis can affect fertility

Endometriosis can affect fertility for some people, although not everyone with endometriosis will have difficulty getting pregnant.

Fertility can be affected by inflammation, adhesions, endometriomas, changes around the ovaries or fallopian tubes, or other factors. Some people first discover they may have endometriosis when they are investigated for fertility difficulties.

If fertility matters to you now or may matter in the future, it is reasonable to ask how suspected or confirmed endometriosis could affect your options.

Endometriosis can affect energy and wellbeing

Endometriosis can be exhausting.

Fatigue linked with endometriosis can feel very different from ordinary tiredness. It may feel like your body is heavy, drained or unable to recover properly. Pain, poor sleep, inflammation, heavy bleeding, stress and repeated flare-ups can all affect energy.

Living with ongoing symptoms can also affect emotional wellbeing. People may feel anxious, low, frustrated, isolated or dismissed. This does not mean the symptoms are “in your head”. It means the impact of the condition is real.

A condition that affects pain, sleep, movement, relationships, school, work, fertility and daily confidence should be taken seriously.

Normal scans do not always mean nothing is wrong

Some forms of endometriosis can be seen on specialist ultrasound or MRI, especially when imaging is carried out by people trained to look for endometriosis. However, not all endometriosis is visible on scans.

A normal scan does not always rule out endometriosis.

If symptoms continue, worsen, or significantly affect your life, it is reasonable to ask what the next step should be. This may include further assessment, referral to a gynaecologist, referral to an endometriosis specialist, or review by another relevant specialist depending on symptoms.

Severe pain is not something to “put up with”

Many people learn to minimise their symptoms because they have been dismissed before.

You may have started to think:

  • “Maybe this is normal.”
  • “Maybe I am overreacting.”
  • “Maybe everyone feels like this.”
  • “Maybe I just need to cope.”

But pain that affects your ability to live normally is worth discussing.

Seek medical advice if you have:

  • period pain that stops normal activities
  • pelvic pain that keeps coming back
  • pain outside your period
  • pain during or after sex
  • bowel or bladder symptoms that flare with your cycle
  • heavy bleeding
  • bleeding between periods
  • pain that is worsening
  • fertility difficulties
  • symptoms that make you miss school, work or activities
  • symptoms that are being dismissed but still affecting your life

Seek urgent medical help for severe sudden pain, fainting, fever, heavy bleeding that feels unsafe, chest pain, shortness of breath, coughing blood, or new problems controlling your bladder or bowel.

What this means for you

Endometriosis is more than painful periods.

It can affect different parts of the body, cause different types of symptoms, and impact daily life in ways that are often misunderstood.

You do not need to prove that your pain is “bad enough” before asking for help. You do not need to have every symptom. You do not need to wait years to be taken seriously.

Your symptoms matter.

Use our Prepare for Appointment Tool to organise what you are experiencing, how it affects your life, and what questions you want to ask a healthcare professional.