Key Takeaways
- Endometriosis is a chronic inflammatory disease, not simply “bad periods.” Symptoms can include disabling menstrual or persistent pelvic pain, deep pain with sex, cyclical bowel or urinary symptoms, infertility, bloating and fatigue.[1][2]
- A normal pelvic examination or routine ultrasound does not rule it out. Specialist transvaginal ultrasound and, when appropriate, MRI can map ovarian endometriomas and deep disease; treatment may begin from a clinical diagnosis without mandatory diagnostic surgery.[1][2][3]
- Pain and fertility are different treatment targets. Hormonal suppression can reduce pain but prevents conception while used; surgery or assisted reproduction may be considered when pregnancy is the priority.
- Deep endometriosis involving bowel, bladder or ureter needs a specialist service with advanced gynaecological surgery and access to colorectal, urology, imaging, pain and fertility expertise.[2][4]
- Ovarian endometrioma surgery can reduce ovarian reserve. The proposal must compare cystectomy, ablation, observation and fertility treatment using age, symptoms, prior surgery, ovarian reserve and laterality.[2][3]
- Surgery can remove visible disease and adhesions, but it is not a guaranteed cure. Persistent pain may also involve pelvic-floor dysfunction, neuropathic pain or central sensitisation, and recurrence prevention needs an explicit plan.[1][3]
Content
Endometriosis care goes wrong when every problem is forced into one solution. Pain does not reliably measure the anatomical extent of disease; a severe scan does not automatically mandate surgery; and an operation that helps pain can reduce ovarian reserve or still fail to solve infertility. The first task is therefore to define the outcome that matters now.
WHO describes endometriosis as endometrium-like tissue outside the uterus that causes inflammation and scar formation, and states that no known cure currently exists.[1] That does not mean nothing can be done. It means treatment should be judged by symptom control, function, fertility and durability—not by a promise to “remove it forever.”
Recognise a pattern, not one symptom
Record symptoms across at least two or three cycles when time and safety allow:
- menstrual pain that disrupts school, work, sleep or daily activity;
- pelvic pain between periods;
- deep pain during or after sex;
- cyclical painful bowel movements, constipation, diarrhoea or rectal bleeding;
- cyclical urinary pain, urgency or blood in urine;
- shoulder or chest symptoms linked to the cycle;
- infertility, prior pregnancy outcomes and fertility treatment; and
- effect on mood, sexual health, movement and relationships.
NICE recommends suspecting endometriosis with chronic pelvic pain, function-limiting dysmenorrhoea, deep dyspareunia, cyclical gastrointestinal or urinary symptoms, and infertility with these features.[2] A symptom diary makes timing and treatment response visible. It should not become a gatekeeping exercise requiring the patient to “prove” pain.
Sudden severe pain with vomiting, fainting, fever, heavy bleeding, a positive pregnancy test, inability to pass urine, bowel obstruction symptoms or acute chest/breathing symptoms requires urgent local assessment. Ovarian torsion, cyst rupture, ectopic pregnancy, infection and other emergencies can coexist with suspected endometriosis.
Diagnosis no longer has to wait for a diagnostic operation
A clinician can form a presumptive diagnosis from history, examination and imaging and start empirical symptom treatment while evaluation continues. WHO says surgery is not necessarily required before treatment begins, and ACOG's 2026 diagnostic guidance similarly supports clinical diagnosis to reduce delays.[1][5]
NICE now recommends transvaginal ultrasound for suspected endometriosis even when examination is normal, to look for endometriomas, deep disease and alternative pathology.[2] If transvaginal scanning is declined or unsuitable, discuss transabdominal imaging and its limitations.
A useful specialist ultrasound report maps:
- each ovary, endometrioma dimensions and mobility;
- uterine position and signs of adenomyosis;
- sliding sign and pouch of Douglas;
- uterosacral ligaments, posterior vaginal fornix and rectovaginal space;
- bowel lesions, length, depth and distance from the anal verge when visible;
- bladder and ureter involvement, hydroureter or hydronephrosis; and
- other pelvic masses or causes of pain.
Pelvic MRI or specialist ultrasound can assess suspected deep disease, but it should be planned and interpreted by someone with gynaecological imaging expertise.[2] Normal imaging still does not exclude superficial peritoneal disease. CA125 must not be used to diagnose or exclude endometriosis.[2]
Laparoscopy remains reasonable when diagnosis is still important, empirical treatment fails or is unsuitable, fertility or anatomy changes the decision, or treatment is planned. Consent should say whether the surgeon will only inspect and biopsy or also excise disease during the same procedure.
Build two parallel plans: pain and fertility
The pain plan defines the pain pattern, functional goal, analgesia or hormone trial, pelvic-floor and neuropathic contributors, and criteria for surgery. The fertility plan defines age, ovarian reserve, tubal and semen assessment where applicable, duration of trying, prior treatment and whether time is better spent on surgery, natural conception or assisted reproduction.
These plans interact but should not be confused. Hormonal suppression is useful for pain in many patients but does not improve spontaneous pregnancy while ovulation is suppressed. Conversely, rushing to surgery for every infertility patient can consume time and ovarian reserve without a proven benefit.
Use medicines with a named purpose and review point
NSAIDs or other analgesics may be tried for pain, with attention to gastrointestinal, kidney, cardiovascular and drug-interaction risks. NICE suggests a short trial and reassessment when relief is inadequate.[2]
Hormonal options can include continuous or cyclic combined hormonal contraception, progestogens, a levonorgestrel-releasing intrauterine system, and GnRH agonist or antagonist regimens, sometimes with add-back therapy. Choice depends on contraindications, side effects, bleeding preference, bone and vasomotor risk, cost and pregnancy timing.[1][2]
Hormones suppress symptoms rather than remove every lesion. Write down the goal—fewer pain days, better sleep, return to work—and the review date. Persistent or worsening symptoms, unacceptable effects, hydronephrosis, bowel obstruction risk, enlarging or atypical mass, or inability to pursue pregnancy should prompt a different plan.
NICE states that available evidence does not support traditional Chinese medicine or Chinese herbal medicines for treating endometriosis.[6] “Natural” products also need interaction, contamination, liver and pregnancy-risk review.
Match the surgical team to the anatomy before anaesthesia
Surgery should answer a defined question: confirm uncertain disease, treat superficial lesions, free adhesions, remove or ablate an endometrioma, restore anatomy, relieve obstruction or address deep disease. “Exploratory laparoscopy” without a treatment boundary is not a complete plan.
For suspected bowel, bladder or ureter involvement, arrange specialist mapping and joint planning before the operation. NICE says these patients should be referred to a specialist endometriosis service; such services need advanced laparoscopic gynaecology plus colorectal and urology access.[4] Ask whether the relevant surgeons will be present, on standby or unavailable, and what happens if unexpected organ involvement is found.
The consent should name:
- excision versus ablation by anatomical site;
- organs at risk and possible repair, stent, disc excision, bowel resection or temporary stoma;
- what disease may intentionally be left to avoid disproportionate harm;
- conversion to open surgery and transfusion arrangements;
- specimen labelling and pathology;
- expected bladder, bowel and mobility recovery; and
- the boundary between this operation and a planned second stage.
NICE recommends recording operative findings with intra-operative images.[2] International patients should obtain that image set, the anatomical diagram and a site-specific operation report; a note saying only “stage IV endometriosis treated” is not a usable handover.
Treat ovarian endometriomas as an ovarian-reserve decision
An endometrioma is not just a cyst to remove. The cyst, inflammation and surgery can all affect ovarian tissue. Before intervention, record age, symptoms, cyst size and laterality, AMH and antral follicle count in context, previous ovarian surgery, fertility objective and concern for atypical features.
NICE recommends considering excision rather than ablation for endometriomas while taking fertility wishes and ovarian reserve into account, and notes that drainage and ablation may preserve more reserve than cystectomy in some fertility contexts.[2] ESHRE likewise highlights the potential harm of ovarian endometriosis and surgery to ovarian reserve.[3]
Ask how the surgeon identifies the tissue plane, controls bleeding without excessive thermal damage, manages bilateral disease and decides when preserving ovarian cortex outweighs complete stripping. Simple drainage alone commonly invites recurrence and should not be presented as definitive without explaining why it is chosen.
Fertility preservation is not automatically required for every patient, nor can egg freezing guarantee a future birth. It may deserve discussion before bilateral, recurrent or extensive ovarian surgery and when age or reserve already narrows options.
Do not let a staging number dictate treatment
Anatomical staging systems help document disease but correlate imperfectly with pain, fertility and complexity. NICE says treatment should follow symptoms, preferences and priorities rather than stage alone.[6]
Ask for both a stage and a plain-language description: ovarian disease, adhesions, deep nodules, organ involvement, residual disease and complications. For fertility counselling, request a specific estimate based on age, ovarian reserve, tubes, sperm factors and prior history rather than “stage II means mild.”
Plan fertility care before, not after, surgery
When pregnancy is the priority, involve a fertility specialist early. NICE recommends multidisciplinary input and says excision or ablation plus adhesiolysis can improve spontaneous pregnancy in selected disease not involving bowel, bladder or ureter.[2] The decision for deep disease or endometrioma is more individual.
Before operating, ask:
- Is pain relief, spontaneous conception, access for egg retrieval or exclusion of malignancy the main objective?
- Would surgery improve the chance of the intended fertility route enough to justify delay and ovarian risk?
- Should embryos or eggs be created before ovarian surgery?
- How long will natural conception be tried afterward before escalation?
- Is tubal function adequate, and has the sperm-providing partner been assessed?
- If IVF is planned, will the lesion obstruct retrieval or create an infection or diagnostic concern?
Hormonal suppression after surgery can prolong pain benefit for those not trying to conceive immediately.[2][3] It should not be imposed as a routine “fertility booster” when the immediate goal is pregnancy.
Persistent pain after technically complete surgery needs a new formulation
Pain can recur because lesions persist or return, but also because pelvic-floor muscles, bladder pain, irritable bowel syndrome, neuropathic mechanisms, adhesions or central sensitisation contribute. Repeated operations without reassessing the pain mechanism may worsen scarring and produce diminishing benefit.
A broader plan may involve pelvic-floor physiotherapy, pain medicine, gastrointestinal or urological review, sexual-health support and psychological therapies as components of chronic-pain care—not as a claim that symptoms are imaginary. WHO recognises comprehensive pain approaches, including physical rehabilitation and cognitive behavioural therapy, as potentially helpful to quality of life.[1]
Hysterectomy ends uterine fertility and can help selected uterine sources of pain, such as coexisting adenomyosis, but does not remove endometriosis outside the uterus and is not a guaranteed cure.[1] Ovary removal creates surgical menopause and requires a separate, age- and risk-specific discussion.
Make follow-up durable across borders
Before leaving China, obtain the specialist ultrasound or MRI images, operative photographs, anatomical drawing, pathology, hospital course, medication plan and precise statement of residual disease. If bowel or urinary surgery occurred, include stent, catheter, anastomosis and organ-specific follow-up details.
The long-term plan should state:
- pain and functional outcomes to track;
- hormone name, duration, contraindications and refill responsibility;
- pregnancy timing and fertility escalation threshold;
- surveillance for an endometrioma or deep bowel, bladder or ureter disease;
- pelvic-floor, pain and mental-health support;
- who reviews new imaging and recurrent symptoms; and
- urgent signs such as fever, worsening pain, heavy bleeding, vomiting, urinary obstruction or chest symptoms.
NICE suggests outpatient follow-up, with examination or imaging as appropriate, especially for deep bowel, bladder or ureter disease and endometriomas larger than 3 cm when surgery is not chosen.[6] Cross-border follow-up should be booked before travel home rather than left as “contact us if needed.”
Medical disclaimer: This article provides general education and cannot diagnose endometriosis, interpret an individual scan, select medication or determine whether surgery will improve pain or fertility. Urgent symptoms need local assessment.
FAQ
Can endometriosis be diagnosed without laparoscopy?
Often a clinical diagnosis can be made from symptoms, examination and specialist imaging, allowing treatment to begin without mandatory surgery.[1][5] Laparoscopy remains useful when uncertainty persists, treatment is planned or the result would change a major decision.
Does a normal ultrasound rule out endometriosis?
No. Ultrasound can map endometriomas and deep disease and exclude some alternatives, but a normal scan does not exclude superficial endometriosis. Specialist technique and interpretation matter.[2]
Is excision surgery a cure?
No. Surgery can remove visible lesions and adhesions and may improve pain or fertility in selected patients, but disease and symptoms can recur. The plan should include residual disease, postoperative suppression when appropriate and other pain contributors.[1][3]
Should an ovarian endometrioma always be removed before IVF?
No universal rule applies. Surgery may help pain, access or diagnostic concerns but can reduce ovarian reserve. Compare cyst size, laterality, age, AMH/AFC, prior surgery, symptoms, retrieval access and the reason for intervention with both the surgeon and fertility specialist.[2][3]
What records are most important after endometriosis surgery in China?
Obtain operative photographs, a site-by-site anatomical report, pathology, residual-disease statement, details of any bowel or urinary procedure, medication plan, fertility timing and follow-up responsibility. A stage number alone is not enough.
Sources
- World Health Organization — Endometriosis Fact Sheet (2025)
- National Institute for Health and Care Excellence — Endometriosis: Diagnosis and Management (NG73)
- European Society of Human Reproduction and Embryology — Endometriosis Guideline (2022)
- National Institute for Health and Care Excellence — Quality Statement: Referral for Deep Endometriosis
- American College of Obstetricians and Gynecologists — Diagnosis of Endometriosis Clinical Practice Guideline (2026)
- National Institute for Health and Care Excellence — Endometriosis Recommendations on Staging, Monitoring and Non-Pharmacological Care
- American College of Obstetricians and Gynecologists — Endometriosis
Image Review
- Decision: Replaced with a topic-specific ImageGen hero and visually reviewed for medical relevance, obvious generation artifacts and bilingual reuse.
- Editorial note: The original image shows a generic gynaecology consultation, a normal uterus icon, a checklist and a calendar. It does not depict endometriotic lesions, endometrioma, deep-disease mapping, pain or fertility trade-offs, so retaining it would make the visual as generic as the discarded text.