GI Investigations · Patient Guide
Anorectal Physiology: Who Needs Pelvic Floor Testing?
The specialised tests behind bowel control and evacuation problems — measurements that turn an embarrassing symptom into a treatable mechanism.
Problems with bowel control, or with emptying the bowel properly, are far more common than their public profile suggests — and far more treatable. The specialised tests behind them — anorectal manometry, endoanal ultrasound and defecating proctography — exist to answer mechanical questions: how strong are the sphincter muscles, is their ring intact, and does the pelvic floor coordinate correctly when it matters. Treatment follows the mechanism.
What each test measures
Manometry measures sphincter pressures at rest and squeeze, plus rectal sensation, via a slim pressure catheter. Endoanal ultrasound images the sphincter ring itself, identifying defects — commonly from childbirth injury — that pressures alone can't localise. Proctography images the mechanics of evacuation, revealing prolapse, rectocoele or paradoxical muscle contraction. None is painful; all are outpatient tests.
When this test is usually indicated
- Faecal incontinence that persists after simple measures — before any decision about intervention
- Suspected sphincter injury, typically obstetric, when repair or targeted therapy is being considered
- Chronic evacuation difficulty or a sensation of blockage despite laxatives
- Assessment before surgery for rectal prolapse
- Planning continence-preserving surgery — for example complex fistula work
When it may not be the right test
- First presentation of constipation before dietary, laxative and toileting measures have been tried
- Routine haemorrhoid or fissure assessment, which is clinical
- Incontinence not yet given a fair trial of conservative treatment — most improves without any test
- Screening without symptoms — these are targeted, question-led investigations
These tests come second, not first: most bowel-control and evacuation problems improve with structured conservative care — fibre manipulation, pelvic floor physiotherapy, bowel retraining. Physiology testing earns its place when that fails, or when surgery is on the table and the mechanism must be known precisely.
What happens if you do need it
Where testing is indicated, Mr Papettas arranges the appropriate studies and — the part that matters — translates the measurements into a plan: targeted physiotherapy, irrigation, or surgery where a defined structural problem warrants it. Rectal prolapse and pelvic floor disorders sit within his colorectal practice, including surgical repair where indicated.
Frequently asked questions
Are these tests painful or undignified?
Neither, in practice — slim instruments, screened privacy and experienced staff. Most patients report them as far easier than the anticipation.
Why not go straight to surgery for incontinence?
Because the operation depends on the mechanism — a sphincter defect, a weak but intact muscle and a coordination problem all lead to different treatments.
What is a rectocoele?
A bulge of the rectal wall, usually forwards into the vagina, that can trap stool during evacuation — proctography demonstrates it and its significance.
Can childbirth injuries from years ago still be treated?
Yes — obstetric sphincter injuries often present decades later, and remain treatable once properly mapped.
Does everyone with these symptoms need all three tests?
No — tests are selected to the question. Many patients need only one, and many need none once conservative care succeeds.
How do I get assessed discreetly and privately?
A confidential consultation at Nuffield Health Warwickshire — call 01926 935121. Self-referrals welcome.
Related reading
Unsure whether you need this test?
Mr Trif Papettas FRCS is a Consultant Colorectal and General Surgeon at Nuffield Health Warwickshire Hospital, Leamington Spa, and a JAG dual-accredited endoscopist. A consultation settles which investigation, if any, your symptoms actually need — and if a test is indicated, it can usually be arranged within days.
Self-referrals welcome · No GP letter required · Self-pay and insured patients seen at Nuffield Health Warwickshire Hospital, Leamington Spa CV32 6RW