Which Doctor for Endometriosis: GP, Specialist, Referral

Suspected endometriosis usually starts with a GP in the UK, or a primary care doctor or ob-gyn in the US. From there, you may be referred to a gynecologist or a specialist endometriosis centre. Scan reports and letters can go in a folder or in Sam's Health Vault, your own copy, separate from the NHS record and any US patient portal. That does not make diagnosis faster, but you do not have to recall from memory what has already been checked.

This article covers who does what and when doctors refer on. It also explains endometriosis centres and what to do if you feel dismissed. How to describe your symptoms is in Endometriosis: Prepare Your Symptoms for the Doctor. What Sam keeps for this condition is on the endometriosis page.

Which doctor should you see first if you suspect endometriosis?

In the UK, the NHS says to see a GP if you think you might have endometriosis. The same goes if symptoms affect everyday life, work or relationships. It also applies if a GP has treated you and your symptoms have not improved or have got worse. The GP will ask about your symptoms and whether close relatives have had endometriosis. They may examine you and may refer you to a gynecologist.

NICE, the guideline body for England, recommends a transvaginal ultrasound for everyone with suspected endometriosis. It says the GP practice should organise it. Scans and referral should run in parallel with first treatment, not one after the other.

In the US, you can see a primary care doctor or go straight to an ob-gyn. HealthCare.gov says you do not need a referral from a primary care provider for OB-GYN care in your plan's network. That does not apply to grandfathered plans bought before 23 March 2010. For other specialists, many HMO plans require a referral, so check your plan first.

In Germany, the first stop is usually a family doctor or a gynecologist, according to IQWiG, the national health information institute.

When does a GP refer you on?

NICE recommends a referral to a gynecology service if:

• First treatment does not work, is not tolerated or is not suitable for you.
• Symptoms harm your daily activities.
• Symptoms persist or keep coming back.
• The exam shows pelvic signs of endometriosis, but deep endometriosis is not suspected.

A referral to a specialist endometriosis centre is recommended for suspected or confirmed deep endometriosis, including the bowel, bladder or ureter. The same goes for an endometrioma, a cyst on the ovary caused by endometriosis, and for endometriosis outside the pelvis. If you are 17 or under, NICE says to refer you to a paediatric and adolescent gynecology service or an endometriosis centre.

A normal exam and scan do not rule endometriosis out, and NICE says a referral may still be needed. The NHS adds that if treatment is not working or symptoms are very severe, you may be referred to a specialist endometriosis service.

These are criteria for doctors, not a test you can run on yourself. A missing criterion is not an all-clear. Your doctor decides whether one applies, but you can always ask whether a referral would make sense for you.

What is an endometriosis specialist, and what does a centre offer?

NICE describes two levels of hospital care. A gynecology service should have access to a gynecologist with expertise in endometriosis, including keyhole surgery skills. Among others, it should also have a specialist nurse, a pain management service and an imaging professional.

A specialist endometriosis centre goes further. According to NICE, it should have access to these, among others:

• Gynecologists with advanced keyhole surgery skills.
• A bowel surgeon and a urologist with an interest in endometriosis.
• An endometriosis specialist nurse.
• A pain management team with expertise in pelvic pain.
• Imaging specialists and advanced diagnostic facilities.

In the UK, the British Society for Gynaecological Endoscopy (BSGE) accredits a network of specialist endometriosis centres. Its website links to a directory of accredited centres. As with other hospital specialists on the NHS, you generally need a referral.

How do you get a referral?

On the NHS, through your GP. The NHS says you are entitled to ask for a referral. Whether you get one depends on what your GP thinks is clinically necessary. You generally cannot refer yourself to a hospital specialist.

In England, you may have the right to choose the hospital for your first outpatient appointment and the consultant-led team. For a non-urgent referral, you have the right to start consultant-led treatment within 18 weeks. That does not apply if you choose to wait longer or a longer wait is clinically right. This is general information, not legal advice.

In the US, it depends on your plan. Ask your insurer whether a specialist needs a referral and whether they are in network.

If symptoms get worse while you wait, do not wait for that appointment (see the last section).

What can you do if your endometriosis pain is dismissed?

The chronic pelvic pain of endometriosis is not normal. According to the WHO, the general public and most health workers in many countries do not know this. IQWiG adds that many people wrongly believe even very bad period pain is normal. The WHO puts the average time to diagnosis at 4 to 12 years.

NICE also tells doctors that every person's experience of pain is unique. It may be expressed in different ways, for example because of cultural background, socioeconomic status or a neurodivergent condition.

What you can do is prepare. It is not a way to force a result.

• Bring numbers instead of "often": how many days it hurt, how badly, and what you had to cancel.
• Say early what you want to sort out. For example: "I want to know whether this could be endometriosis and what the next step is."
• If your scan was normal, ask what happens next. ESHRE notes that a negative scan does not exclude endometriosis.
• If a test or referral is not offered, ask why and write the answer down.
• Bring a friend or family member if that helps. The NHS suggests it.

To be honest about limits: ESHRE found no evidence that a symptom diary, questionnaire or app shortens the time to diagnosis. It does see a possible benefit, because a diary makes pain more concrete and helps you show your symptoms. For how to open that conversation, see When your doctor does not take your symptoms seriously.

Can you ask for a second opinion?

Yes, you can ask. Healthwatch England says a second opinion on the NHS is not a legal right. It adds that the General Medical Council requires doctors to respect a patient's right to seek one.

You can ask to see a different GP at your practice. You can also ask your GP to refer you to a different hospital specialist. That counts as a new referral, so the wait may be longer.

Bring your earlier results so the new doctor does not start from zero. How to request copies is in Getting a Copy of Your Medical Records When Changing Doctor.

Which questions should you ask about endometriosis?

The NHS suggests writing down your two or three most important questions before the visit. Some that fit this situation:

• What else could be causing my symptoms?
• Which test comes next, and who will do it?
• What happens if the scan is normal?
• When would a gynecologist or an endometriosis centre make sense for me?
• What should I record before the next appointment?
• Who do I contact if things get worse?

Which records should you bring to a new doctor?

The NHS suggests listing or bringing all your medicines. For endometriosis, bring:

• Earlier ultrasound and MRI reports, and letters from other doctors.
• Operation notes, if you have had surgery.
• A list of all your medicines, including what you take for pain.
• Your record of pain days and bleeding days.

In Sam, you file these in the Health Vault by scanning them with the camera, picking photos or importing a PDF. You set or correct the type, such as Doctor's letter or Imaging report, and the date, and you can add the practice. Each document can carry your own notes, such as the next step the doctor mentioned. You can open the pages full screen, and share the document through the iOS share sheet. What a report means is for you and your doctor to discuss.

What if symptoms get worse while you wait?

Call your local emergency number (112 in the EU, 999 in the UK, 911 in the US) for pelvic pain that is severe or comes on suddenly and intensely. The same applies if it is getting worse or hurts when you move or touch the area, or if it comes with:

• Feeling faint, dizzy or lightheaded, or passing out.
• Pain in the tip of your shoulder.
• Difficulty breathing.
• Heavy bleeding from the vagina.
• Sudden confusion.
• A high temperature, or feeling hot, cold or shivery.

Severe difficulty breathing, sudden chest pain that does not go away, or chest pain with shortness of breath, sweating, feeling sick or light-headed also needs an emergency call, including around your period. The NHS notes that endometriosis is sometimes found in the chest. Do not wait for it to pass. Call your local emergency number too if you cough up more than a few spots or streaks of blood, or if you cough up blood and find it hard to breathe, have a very fast heartbeat or have pain in your chest or upper back. A few small spots or streaks of blood, or blood in your phlegm or handkerchief, need urgent help.

Get urgent help for period or pelvic pain that is severe or worse than usual. This applies all the more if painkillers have not helped. The same goes for pelvic pain with:

• Blood in your pee or poo.
• Trouble peeing or pooing.
• Pain when peeing, or needing to pee more than usual.
• Unusual discharge or bleeding from the vagina.
• Vomiting and diarrhoea, or feeling sick.
• A pregnancy or possible pregnancy.

In the UK, that means an urgent GP appointment or NHS 111. Elsewhere, ask your doctor's office for an urgent appointment or use an out-of-hours service. If in doubt, go with the more urgent option. Sam replaces neither an emergency call nor an examination.

Keep scan reports and pain days ready for every doctor in Sam

Moving between a GP, a gynecologist and a centre, you carry your records and your pain days in one place.

• Instead of a folder: scan reports and letters go into the Health Vault as a scan, photo or PDF, with type and date.
• Instead of loose notes: each document can carry your own notes, such as the next step a doctor named.
• Instead of memory: you rate Pelvic pain per day as mild, moderate or severe in the symptom diary. Bleeding goes into cycle tracking.

Sam writes no referral, books no appointment and cannot tell you whether your pain is endometriosis. More on the endometriosis page.

Try Sam for free

Sam is a wellness companion, not a medical device. The app does not diagnose, treat, cure or prevent any condition or health state. Always consult qualified professionals for medical decisions.

General information, not legal advice. Laws, deadlines and agency practice change, and your case may differ. Before applications, deadlines and conversations with insurers or agencies, get advice from an adviser or lawyer.

Related reading

• Endometriosis: Prepare Your Symptoms for the Doctor
• Period Pain or Endometriosis? When to See a Doctor
• When your doctor does not take your symptoms seriously
• Getting a Copy of Your Medical Records When Changing Doctor
• Doctor Appointment Checklist for a Chronic Condition
• Symptom Diary: Paper Template or App?

Sources

Updated: October 2026

• NICE: Endometriosis: diagnosis and management (NG73), Recommendations (last updated 11 November 2024), recommendations 1.1.3, 1.1.4, 1.3.4, 1.5.1, 1.5.2 and 1.5.4 to 1.5.7
• NHS: Endometriosis (reviewed 27 August 2024) and Referrals for specialist care (reviewed 12 April 2023)
• NHS: What to ask your doctor or other healthcare professional (reviewed 12 January 2023)
• HealthCare.gov: Doctor choice and emergency room access and Referral (glossary)
• British Society for Gynaecological Endoscopy: Endometriosis centres
• Healthwatch England: Getting a second opinion about your care (29 September 2025)
• ESHRE Endometriosis Guideline Group: ESHRE guideline: endometriosis. Human Reproduction Open 2022(2):hoac009, chapter on diagnosis
• WHO: Endometriosis, fact sheet (15 October 2025)
• IQWiG (InformedHealth.org): Diagnosing endometriosis (updated 25 March 2025)
• NHS: Pelvic pain (reviewed 24 November 2025), Period pain (reviewed 18 March 2026), Chest pain (reviewed 8 August 2023), Shortness of breath (reviewed 30 January 2024) and Coughing up blood (reviewed 13 June 2024)
• Techniker Krankenkasse: Akuter Bauch (Abdomen, akutes) (22 December 2020, in German)
• European Commission, Your Europe: Emergency number 112