Synopsis
Explain how pelvic adhesions arise, judge when they plausibly affect pain, fertility or organ function, and avoid low-value repeat adhesiolysis while recognising situations that need surgery.
- Adhesions are fibrous connections between surfaces that are normally separate, most often forming after surgery, infection, endometriosis, inflammation, bleeding or tissue ischaemia.
- Many pelvic adhesions are asymptomatic; finding a band at laparoscopy does not prove that it caused chronic pain, and pain location does not reliably map to adhesion location.
- Adhesions can plausibly cause symptoms through traction on mobile or distending organs, bowel obstruction, fixed ovaries or tubes and distortion relevant to fertility or future surgery.
- Routine ultrasound, CT and MRI may suggest tethering or complications but cannot reliably exclude or comprehensively map thin adhesions; laparoscopy visualises them but is itself an operation that can create more.
- RCOG finds no evidence supporting division of fine adhesions solely for chronic pelvic pain; division of dense vascular adhesions can be considered after careful selection and counselling about uncertainty.
- For fertility-priority endometriosis not involving bowel, bladder or ureter, NICE recommends excision or ablation of endometriosis plus adhesiolysis because this improves spontaneous pregnancy chance.
- Adhesiolysis carries bleeding, organ injury, conversion and recurrence risks; an improvement after surgery is not guaranteed and new adhesions can reform at the divided surfaces.
- Prevention is imperfect: minimise unnecessary surgery, use meticulous tissue handling and haemostasis and consider an adhesion-reduction product only for an appropriate operation and product indication.
Key red flags
Persistent vomiting, abdominal distension, obstipation, peritonism, fever, tachycardia or rising lactate suggests bowel obstruction, strangulation or perforation and needs urgent general surgical review.
A positive pregnancy test with pain, bleeding, syncope or shoulder-tip pain requires ectopic-pregnancy assessment because previous infection and tubal surgery can increase risk.
Pelvic pain with fever, purulent discharge or a complex collection suggests active infection or abscess rather than inert scar tissue.
Hydronephrosis, impaired renal function, urinary retention or progressive bowel dysfunction may indicate organ distortion or an alternative obstructive disease and warrants specialist assessment.
Weight loss, ascites, postmenopausal symptoms or a new mass must enter a malignancy pathway rather than being attributed to adhesions from remote surgery.
Investigation priorities
Exclude pregnancy-related pain and measure dehydration, inflammation, anaemia or metabolic disturbance when obstruction or infection is possible.
Management branches
Vomiting, distension, obstipation or peritonism raises adhesive bowel obstruction after prior surgery or inflammation.
- Obtain urgent observations, venous access, bloods and general surgical assessment, correct fluid and electrolyte losses and provide analgesia and antiemetic care.
- Use CT according to stability to define obstruction, closed-loop or ischaemic features and alternative causes; involve gynaecology when pelvic disease or pregnancy changes management.
- Proceed to urgent operative management when strangulation, perforation, peritonitis or failed appropriate non-operative care demands it, with consent for possible bowel repair or resection.