Endometriosis Misdiagnosis Claims

Endometriosis is a chronic health condition in which tissues similar to the lining of the uterus grow outside of it, often on the ovaries and fallopian tubes. Healthcare professionals are expected to recognise its symptoms and take the necessary steps to diagnose and treat endometriosis. When misdiagnosed or poorly managed, it can cause pain, heavy menstrual bleeding, infertility and other symptoms.

If you received substandard care and suffered avoidable harm, you may be entitled to make an endometriosis misdiagnosis claim. A personal injury solicitor could help you secure compensation to reflect the pain and suffering you endured and cover any related financial losses.

To find out if you have a valid claim, call 0800 470 0474 today for a free consultation with an experienced legal adviser or enter your details into our online claim form to request a call back.

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Table of Contents

• What is endometriosis?
• Signs and symptoms of endometriosis
• Endometriosis diagnosis and treatment
• What are the complications of poor management of endometriosis?
• Am I entitled to make an endometriosis misdiagnosis claim?
• What evidence is needed to claim compensation for misdiagnosed endometriosis?
• Can I make an endometriosis claim against the NHS?
• Is there a time limit to make a medical negligence claim for endometriosis compensation?
• How much compensation is an endometriosis negligence claim worth?
• How long will it take to settle a claim for misdiagnosed endometriosis?
• Do medical negligence solicitors offer a No Win No Fee service?

What is endometriosis?

Endometriosis is a chronic medical condition where tissue resembling the lining of the uterus (the endometrium) starts growing in other parts of the body. It often affects the ovaries, fallopian tubes and the tissue lining the pelvis, causing various symptoms such as heavy menstrual periods, pain with sex and bowel movements and infertility. The condition can have a significant impact on individuals and can decrease their quality of life due to fatigue, depression, severe pain and anxiety.

Endometriosis is a complex disease that affects many women in the UK and globally. While its exact cause isn’t clear, many factors contribute to its development, including:

• Retrograde menstruation occurs when menstrual blood flow does not leave the body but instead goes back into the pelvic cavity through the fallopian tubes. This allows endometrial-like cells to be deposited outside the uterus, where they can implant and grow.
• Changes of embryonic cells into endometrial-like cells during the earliest stages of development due to hormones such as oestrogen;
• Stem cells that can spread through the body via the blood and lymphatic vessels;
• Immune system disorders, which can make the body unable to recognise and destroy the tissue growing outside the womb;
• Post-surgical complications from C-section or hysterectomy, where endometrial cells may attach to scar tissue and grow;
• Hormones or immune factors can transform the peritoneal cells that line the abdomen into cells similar to those of the uterus.

Signs and symptoms of endometriosis

Many symptoms are connected with endometriosis, the most common of which is pain. The pain can be intense or mild, and it can be felt in the abdomen, lower back, or pelvic region. Some people do not have any symptoms at all, and the condition is discovered during other procedures or investigations. When signs are present, these can also include:

• Pain during or after sex
• Heavy menstrual bleeding or bleeding between periods
• Severe cramps that may start before and extend several days into the menstrual period
• Pain during urination or bowel movements
• Difficulty conceiving or maintaining a pregnancy
• Blood in the urine or faeces during your period
• Bloating, nausea, diarrhoea or constipation
• Chronic tiredness or exhaustion

If you think you might have endometriosis, you should see a doctor as soon as possible. Early diagnosis and treatment are essential to manage symptoms and prevent complications such as chronic pain and infertility.

Endometriosis diagnosis and treatment

Endometriosis can be difficult to diagnose because symptoms can vary considerably from person to person and are similar to many other conditions. In many cases, painful and heavy periods or chronic pelvic pain will make you reach out to your GP. For a correct diagnosis, they should take the following steps:

• Ask about your medical history, your symptoms and if anyone in your family has endometriosis;
• Do a pelvic exam to check for abnormalities such as cysts on reproductive organs;
• Refer you to a gynaecologist for further tests, such as an MRI, an ultrasound scan or laparoscopy.

A laparoscopy is the gold standard for diagnosing endometriosis. This minimally invasive procedure involves inserting a thin tube with a camera through a small incision in the navel to examine the pelvic organs. The doctor may also take a biopsy to confirm the presence of endometrial tissue.

If you are diagnosed with endometriosis, treatment will depend on the severity of the symptoms, your age and the extent of the disease. Treatment may involve:

• Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen or analgesics to manage pain;
• Hormonal medicine, which can include birth control pills, gonadotropin-releasing hormone (GnRH) medications that stop the hormones causing the menstrual cycle, danazol or progestin therapy;
• Surgical treatment to remove endometrial growths or part or all the organs affected by endometriosis.

If you suffered avoidable harm due to misdiagnosis of endometriosis or inadequate treatment, you may be able to make an endometriosis negligence claim.

What are the complications of poor management of endometriosis?

As stated before, endometriosis symptoms are similar to other conditions, so it is often mistaken for:

• Irritable bowel syndrome (IBS)
• Painful periods
• Urinary tract infections (UTIs)
• Pelvic inflammatory disease (PID)
• Polycystic ovary syndrome
• Interstitial cystitis
• Uterine fibroids
• Ovarian cysts

In cases of misdiagnosed endometriosis or when doctors fail to provide adequate treatment, you can suffer a range of complications, some of which can have significant long-term impacts on your health and quality of life. These include:

• Difficulty getting pregnant or infertility
• Chronic pelvic pain that can be severe and debilitating
• Gastrointestinal and urinary complications, such as painful bowel movements and blood in urine
• Pain during intercourse, which can impact sexual health and relationships
• Adhesions and scarring, which can damage organs
• Progression to more severe stages, which can lead to increased symptoms and complications
• The need for multiple surgeries, with their own risks and complications
• Psychological and emotional impacts, such as anxiety and depression
• Reduced overall quality of life
• Ongoing fatigue and an increased risk of cancer and autoimmune disorders

If you or a loved one suffered due to misdiagnosis of endometriosis, you may be entitled to claim compensation for any resulting injuries.

Am I entitled to make an endometriosis misdiagnosis claim?

The simplest way to find out if you can bring a claim for a delay in diagnosis of endometriosis is through a free consultation with a medical negligence expert. They will help you seek compensation if the following factors can be proven in your case:

• Duty of care. Your solicitor can easily prove this, as all medical professionals, including GPs and gynaecologists, have a duty to provide an accurate diagnosis and competent medical treatment.
• A breach of duty occurs when healthcare professionals fail to meet the expected standard of care. In the context of an endometriosis misdiagnosis claim, this could include failure to perform a thorough examination, failure to order tests or misinterpreting symptoms.
• Causation requires proving that the breach of duty directly caused harm or worsened your illness. If the doctor’s breach of duty did not change the outcome of your condition, you would not have a valid claim.
• Damages. These refer to all the pain, suffering and financial losses incurred due to medical negligence. They can be proven with evidence such as medical records, receipts and invoices.

If your case has merit, your solicitor will help you start your claim on a no win no fee basis and handle all communication with the other side on your behalf.

What evidence is needed to claim compensation for misdiagnosed endometriosis?

To make a successful medical misdiagnosis claim, your solicitor will need various types of evidence of the endometriosis misdiagnosis and how this has affected your life, such as:

• Detailed records of all visits to medical professionals and the symptoms you reported to them;
• Diagnostic tests such as ultrasounds, MRIs, laparoscopy and other procedures;
• Documentation of the treatments you received and follow-up care;
• Medical records that show the injuries you suffered due to delayed diagnosis of endometriosis;
• Testimony from medical specialists who can attest whether the care you received was below the acceptable standard;
• A detailed diary from you recording your symptoms, how these have evolved over time and how they have impacted your work and daily life;
• Statements from friends and family members who can attest to the impact of endometriosis on your life;
• Photographs and videos of any visible injuries, such as scarring or swelling;
• The copy of a formal complaint you made with the hospital or any correspondence with your doctor or the medical staff;

You also need evidence of any financial losses related to the undiagnosed endometriosis, such as costs for additional treatments or lost wages.

Can I make an endometriosis claim against the NHS?

If you suffered due to endometriosis misdiagnosis after visiting an NHS hospital or GP, you may be entitled to claim compensation. If the care you received fell below the acceptable standard and this directly caused you harm, an experienced solicitor will help you start a medical negligence claim.

All NHS trusts pay an annual premium to NHS Resolution, the insurance company that handles all claims against the NHS. If your case is successful, NHS Resolution will pay your compensation, and the budget allocated for patient care and hospital equipment will not be affected. Furthermore, your claim can help improve the medical system and prevent similar injuries in the future.

Is there a time limit to make a medical negligence claim for endometriosis compensation?

Under the Limitation Act 1980, you have three years from the date you became aware of the negligent treatment to claim for misdiagnosed endometriosis. After three years, your case will be time-barred and no longer valid. There are some exceptions to this time limit:

• The limitation period for child injury claims does not start until the child’s 18th birthday. A parent or legal guardian could claim on the child’s behalf at any time before that.
• If the injured party does not have the mental capacity to pursue a claim, the time limit is put on hold, and a litigation friend can represent them at any time. This could be due to complications from endometriosis or a pre-existing condition such as autism.

As with any other compensation claim, the sooner you start legal proceedings, the better. This will help your medical negligence lawyer gather the necessary evidence to build a strong endometriosis misdiagnosis claim and secure compensation on your behalf.

How much compensation is an endometriosis negligence claim worth?

The amount of compensation you could receive for a misdiagnosed endometriosis claim will depend on how the delayed diagnosis or treatment has affected your life. Your solicitor will include two types of damages in your claim to ensure you receive the maximum payment you are entitled to:

• General damages compensate for the pain, suffering and loss of amenity caused by the negligence. These also include any emotional distress, such as anxiety and depression.
• Special damages cover the financial losses incurred as a direct result of the negligence, such as private treatments, travel expenses to and from medical appointments, and income lost due to the inability to work during recovery.

You can refer to our compensation calculator to get an idea of how much compensation you could receive based on the type and severity of your injuries.

How long will it take to settle a claim for misdiagnosed endometriosis?

The time it takes to settle a claim for misdiagnosis of endometriosis will depend on your specific circumstances. If your case is straightforward and the defendant admits liability for the harm that they have caused you, your claim could be settled within a matter of a few months. If your case is more complex or the other side denies liability, it can take several years for it to be resolved.

You can rest assured that your solicitor will do everything they can to get you the compensation you deserve within the shortest time possible. In certain situations, such as when the defendant has admitted liability or your evidence is compelling, they may also be able to secure interim payments for you so you can cover any pressing financial needs, such as medical treatments or counselling.

Do medical negligence solicitors offer a No Win No Fee service?

If you have a valid claim for compensation, a medical negligence solicitor will offer you a no win no fee agreement. They will not ask for any upfront payments to work on your case and will take on the risk of litigation.

If you receive compensation for undiagnosed endometriosis or misdiagnosis, they will deduct a success fee from your award to cover their services. This is capped at 25% and will be agreed upon from the beginning. If you lose, you do not have to pay anyone a single penny.

For further peace of mind, your claim will also include After the Event (ATE) insurance. This will cover all your litigation costs if you lose, such as court fees, expert witness fees and the defendant’s solicitors.

To learn more about making a compensation claim on a no win no fee basis, do not hesitate to get in touch with a friendly legal adviser by calling 0800 470 0474 or using our online contact form.

Last edited on 7th Aug 2025

With over 15 years’ experience in the legal sector, Nicholas Tate (LLB Hons, LLM in Health Law) has extensive experience across all areas of personal injury and medical negligence claims.