01Purpose and principlesWhat the assessment is for and the core concepts behind it.
Hysteroscopy and laparoscopy look at different anatomical compartments. Hysteroscopy directly visualises the endocervical canal and endometrial cavity; it can target biopsy, remove a polyp, treat selected submucosal fibroids or retrieve an intrauterine device. It does not inspect ovaries, external uterine surface, tubes or peritoneum. Laparoscopy visualises the abdominal and pelvic peritoneal cavity and may identify or treat endometriosis, adhesions, ovarian disease, ectopic pregnancy or tubal pathology. It does not assess endometrial histology unless combined with a uterine procedure.
Selection follows the unresolved question and least invasive adequate route. In heavy menstrual bleeding, NICE recommends outpatient hysteroscopy first when persistent intermenstrual bleeding or risk factors suggest a cavity or endometrial lesion. If the patient declines, offer pelvic ultrasound while explaining its limitations. In suspected endometriosis, transvaginal ultrasound helps identify endometrioma and deep disease and supports operative planning; a normal scan does not exclude superficial endometriosis. NICE allows diagnostic laparoscopy to be considered when symptoms persist, including after normal ultrasound or MRI.
Prepare outpatient hysteroscopy with comprehensible information before the day. Establish pregnancy possibility, infection symptoms, anticoagulants, allergies, comorbidity, previous cervical procedures and prior examination experiences. Explain the setting, positioning, fluid distension, cramping, spotting, biopsy and possibility that the cervix cannot be entered or the procedure must stop. Offer a trained chaperone and trauma-informed options. Discuss oral analgesia, local anaesthetic where cervical manipulation is anticipated and a day-case or general-anaesthetic alternative; do not present awake hysteroscopy as compulsory.
A small hysteroscope introduced with a vaginoscopic no-touch technique can avoid speculum and tenaculum use. Distension fluid opens the cavity. Inspect systematically, documenting both tubal ostia, cavity contour, endometrium and focal lesions where visible. Tissue is sampled when indicated and labelled accurately. Fluid balance and the equipment used matter during operative procedures because excessive systemic absorption can cause serious electrolyte or volume complications. Stop for intolerable pain, suspected perforation, instability or withdrawal of consent.
Laparoscopy preparation includes anaesthetic assessment, pregnancy testing with consent, venous thromboembolism risk, infection prevention and a clear operative plan. Explain umbilical and accessory ports, pneumoperitoneum, positioning and expected recovery. Material risks include injury to major vessels, bowel, bladder or ureter, haemorrhage, infection, port-site hernia, shoulder-tip pain, thrombosis, need for transfusion or conversion to open surgery. Clarify what additional treatment is authorised if endometriosis, adhesions, an ovarian lesion or unexpected malignancy is found; broad consent for ‘anything necessary’ is inadequate.
A diagnostic endometriosis laparoscopy should systematically inspect the pelvis and record normal as well as abnormal sites, with biopsy of suspicious lesions when appropriate. Histology can confirm endometriosis, but NICE notes that a negative histology result does not exclude it. Extensive disease may be safer to map and defer for specialist multidisciplinary surgery rather than attempt unplanned incomplete treatment. Likewise, adhesions do not automatically explain pain and adhesiolysis has its own injury and recurrence risks.
Recovery plans match intervention. Brief cramping and light bleeding may follow hysteroscopy; abdominal discomfort, shoulder-tip pain and fatigue can follow laparoscopy. Explain analgesia, wound care, activity, driving, sex or tampon advice relevant to the actual procedure and anaesthetic. Arrange histology ownership and a review that states whether the original question was answered. Escalating pain, fever, heavy bleeding, offensive discharge, vomiting, abdominal distension, urinary difficulty or cardiopulmonary symptoms requires urgent reassessment because visceral injury can present late.
Key points
- Hysteroscopy passes a narrow telescope through the cervix to inspect the uterine cavity; laparoscopy passes a telescope through the abdominal wall under anaesthesia to inspect and potentially treat pelvic and abdominal disease.
- Choose hysteroscopy for focal cavity questions such as polyps, submucosal fibroids or endometrial pathology, and laparoscopy for peritoneal disease, adhesions, tubal pathology or selected unresolved pelvic pain.
- NICE prioritises outpatient hysteroscopy for heavy menstrual bleeding when history suggests submucosal fibroids, polyps or endometrial pathology; ultrasound alone can miss cavity lesions.
- Outpatient hysteroscopy should include written information, pregnancy exclusion, options for pain control, a chaperone, the right to stop and an alternative anaesthetic setting when the awake procedure is unacceptable.
- A vaginoscopic technique with a small hysteroscope often avoids speculum and cervical instrumentation; biopsy or see-and-treat polypectomy requires specific advance consent.
- Diagnostic laparoscopy requires general anaesthesia and consent for entry injury, bleeding, infection, organ injury, thromboembolism, conversion to laparotomy and any planned additional treatment.
- NICE supports considering laparoscopy for suspected endometriosis even when ultrasound or MRI is normal; inspection should be systematic and suspicious lesions biopsied, but negative histology does not fully exclude disease.
- Neither procedure is automatically therapeutic: define whether the plan is look only, biopsy, remove a lesion, treat endometriosis, test tubal patency or stop if unexpected disease is found.
- After discharge, give specific contacts and triggers for heavy bleeding, increasing pain, fever, offensive discharge, vomiting, distension, urinary difficulty, wound change, calf swelling, chest pain or breathlessness.
02Indications, selection and cautionsWhen it is useful, when urgency changes and important limitations.
Intermenstrual bleeding, suspected polyp, submucosal fibroid or endometrial risk makes direct hysteroscopic visualisation and targeted sampling more informative than blind assessment.
Persistent cyclical pain, endometriosis features, tubal disease or adhesions may require laparoscopy after appropriate non-invasive assessment and shared decision-making.
Severe pain, cervical stenosis, prior traumatic experience or patient preference may make awake hysteroscopy unsuitable and should prompt an alternative setting rather than coercion.
Sudden loss of resistance, unexpected instrument depth, severe pain, bleeding or instability during hysteroscopy raises perforation and requires immediate cessation and assessment.
Increasing pain, tachycardia, fever, ileus, vomiting, peritonism or reduced urine after laparoscopy can signal bowel, bladder, ureteric or vascular injury.
Typical symptoms can persist with normal ultrasound or MRI because superficial peritoneal lesions may not be visible on imaging.
03Method and interpretationA systematic approach to the test and its findings.
Read from the initial assessment onwards. Tests may run in parallel in urgent care; first-line, preferred, confirmatory, definitive and gold-standard labels appear only when the chapter explicitly states them.
- 01
Outpatient diagnostic hysteroscopyFirst step - Why
- Directly inspect the uterine cavity and identify focal polyps, submucosal fibroids or endometrial abnormalities.
- Interpretation and limitations
- Quality depends on complete cavity visualisation. Record ostia, contour, focal lesions and any limitation; visual appearance does not replace histology when cellular diagnosis is required.
- 02
Hysteroscopy-directed biopsy - Why
- Obtain tissue from suspicious or high-risk endometrium under direct cavity assessment.
- Interpretation and limitations
- A targeted adequate specimen is preferable to blind sampling for focal pathology. Insufficient tissue or discordant symptoms requires further planning rather than reassurance.
- 03
Pelvic ultrasound before procedure - Why
- Map myometrial, ovarian, adnexal and deep endometriosis disease and inform whether hysteroscopy or laparoscopy is suitable.
- Interpretation and limitations
- Normal ultrasound does not exclude superficial endometriosis or every cavity lesion; abnormal mapping may change surgeon, equipment or referral level.
- 04
Diagnostic laparoscopy - Why
- Inspect peritoneal surfaces, ovaries, tubes and external pelvic anatomy and obtain targeted biopsy or treatment.
- Interpretation and limitations
- Systematic documentation is essential. Negative inspection or histology reduces but does not erase all endometriosis probability and should not invalidate symptoms.
- 05
Pre-procedure pregnancy and anaesthetic assessment - Why
- Prevent avoidable fetal exposure and identify cardiorespiratory, bleeding, medicine, infection and thrombosis risks.
- Interpretation and limitations
- Seek consent for testing and review timing. Urgent pregnancy-related surgery follows a different risk-benefit pathway from an elective diagnostic procedure.
- 06
Post-procedure bloods and imaging - Why
- Investigate suspected haemorrhage, infection, perforation or visceral injury after deterioration.
- Interpretation and limitations
- Select full blood count, renal profile, lactate, CT or ultrasound from physiology and likely injury; normal early blood results do not exclude evolving bowel injury.
04Clinical next stepsHow the result changes management or prompts escalation.
01Hysteroscopy routeInspect the cavity with an agreed diagnostic and treatment limitFirst stepSymptoms or imaging suggest a focal uterine-cavity or endometrial lesion.+
- 1Confirm indication, pregnancy status, bleeding and infection context, and explain outpatient, analgesic, anaesthetic and no-procedure alternatives with their limitations.
- 2Obtain specific consent for visualisation, biopsy and any see-and-treat intervention, then use a small atraumatic technique and stop for withdrawal, severe pain or suspected perforation.
- 3Document completeness, lesion location, samples, fluid and complications, and assign histology and symptom follow-up to a named clinician.
02Laparoscopy routePlan direct inspection and authorised treatmentA peritoneal, tubal or adnexal question remains after suitable clinical assessment and imaging.+
- 1Complete anaesthetic, pregnancy, thrombosis and imaging assessment and explain port entry, organ injury, conversion and recovery risks alongside non-operative options.
- 2Define whether consent permits biopsy, endometriosis treatment, adhesiolysis, cyst surgery, tubal testing or only inspection, including how unexpected disease will be handled.
- 3Inspect systematically, record disease distribution and any untreated area, then communicate operative findings, pathology ownership and the next treatment decision.
03Procedure stoppedProtect the patient and preserve a diagnostic planPain, withdrawal, cervical access failure, perforation concern or anaesthetic risk prevents completion.+
- 1Stop safely, assess observations, pain and bleeding, and investigate perforation or injury when the procedural features make it plausible.
- 2Explain exactly what was incomplete and avoid labelling the uterine cavity or pelvis normal from a partial procedure.
- 3AlternativeOffer repeat expert procedure, alternative imaging or an anaesthetic setting only after reviewing necessity, prior experience and the patient’s preferences.
04DeteriorationAssume a complication until assessedSymptoms become severe or progressive during recovery from hysteroscopy or laparoscopy.+
- 1Use ABCDE, examine abdomen and wounds, quantify bleeding and urine output and contact senior gynaecology and the operating team promptly.
- 2Obtain targeted laboratory tests and imaging with general surgery, urology, anaesthesia or critical care input according to suspected injury.
- 3Do not discharge or reassure solely because the operation was described as uncomplicated; delayed thermal or bowel injury can initially be subtle.
05Procedure and medicine safetyRelevant preparation, treatment and contraindications.
Paracetamol before outpatient hysteroscopy
Take 1 g orally about one hour before the appointment when suitable; subsequent doses must remain at least four hours apart and within the patient-specific daily maximum.Reduce the maximum or seek prescribing advice with low body weight, liver disease, malnutrition or harmful alcohol use, and include all combination products to avoid accidental overdose.
Ibuprofen before outpatient hysteroscopy
Take 400 mg orally with food about one hour before the procedure if an NSAID is appropriate and no interacting dose has already been taken.Avoid or seek specialist advice with NSAID hypersensitivity, active ulcer or bleeding, significant kidney disease, anticoagulation, relevant asthma, severe heart failure or pregnancy; follow local peri-procedural policy.
06Risks, monitoring and follow-upComplications, safety checks and further assessment.
- During hysteroscopy monitor pain, vasovagal symptoms, bleeding and fluid balance appropriate to the device and procedure, stopping when safety or consent changes.
- After laparoscopy trend observations, pain pattern, abdominal findings, urine, oral intake and mobilisation, reopening injury assessment when recovery deviates from the expected course.
- Track all endometrial, peritoneal or ovarian histology to a named reviewer and reconcile the result with the visual impression and original clinical question.
- Document the procedure actually completed, areas inspected, treatment delivered, complications, residual disease and any planned staged or specialist surgery.
- Provide written return triggers and a reachable service because bowel, urinary and infectious complications may become apparent after discharge.
07Special situationsVariants, exceptions and circumstances that change the usual approach.
One telescope, one compartment
Hysteroscopy answers cavity questions and laparoscopy answers peritoneal ones; their similar names should not obscure fundamentally different anatomy and risks.
See and treat needs consent
Convenience does not authorise an unplanned polypectomy, biopsy or endometriosis treatment; the patient should know what may be done before the procedure begins.
Negative is technique-dependent
A partial cavity view or unsystematic laparoscopy cannot support the same reassurance as a complete documented examination by an appropriately skilled operator.
Pain is not proof failure
Normal laparoscopy can redirect mechanisms and treatment, but it must never be framed as evidence that disabling pelvic pain is fabricated.
Delayed injury changes recovery
Thermal bowel injury may not be obvious intraoperatively, so progressive symptoms after an apparently straightforward laparoscopy deserve urgent reassessment.
08Common pitfallsFrequent interpretation and management errors.
- 01
Using hysteroscopy to investigate ovarian pain or laparoscopy to diagnose endometrial cellular pathology.
- 02
Presenting awake outpatient hysteroscopy as the only acceptable choice despite pain, trauma or patient refusal.
- 03
Taking broad consent and performing additional surgery that was not specifically discussed or authorised.
- 04
Calling a stopped or incomplete procedure negative without documenting which anatomy remained unseen.
- 05
Assuming normal ultrasound or negative histology makes endometriosis impossible in a compatible presentation.
- 06
Reassuring progressive postoperative pain because observations and blood results were initially normal.