Loss of control or leakage
Shows muscle shape and continuity to relate continence anatomy to symptoms.
360° endoanal ultrasound in Guadalajara and Zapopan
Imaging the muscles of bowel control to plan your treatment
360° endoanal ultrasound shows the sphincter and surrounding tissue. We offer it in the office, avoiding travel elsewhere and returning with results, for greater convenience and continuity of care.
Dr. Eduardo Navarro LaraColorectal surgeon · Anorectal tests
What it shows
A view of muscles and tissues beyond a surface examination
The test takes place in the office, without needing to go elsewhere and return with results.
An ultrasound probe in the anal canal creates cross-sectional images. The 360° view examines the full circumference and relationships between internal and external sphincters and nearby tissue.
The clinical concern and examination determine how this anatomical information is used.
When it adds information
When sphincter anatomy helps plan care
Symptoms, examination and history determine whether imaging adds useful information.
Sphincter injury
Identifies internal or external sphincter changes after childbirth, surgery or injury.
Anal fistula
In selected cases, it follows fistula tracts and their muscle relationship before treatment decisions.
Abscess or deep inflammation
Images nearby collections and tissues when examination needs supplementation.
Tests answering different questions
Different tests examine different structures
No single test covers all colon, rectal and anal problems.
Endoanal ultrasound
Shows sphincter anatomy and structures near the anal canal.
Anoscopy
Directly views anal canal and lower rectal lining.
Explore anoscopyMRI
Provides a broader map for complex fistulas or extensions distant from the canal.
Colonoscopy serves another purpose: viewing the colon's interior. Learn about colonoscopy
From assessment to result
The test answers a specific clinical question
Indication and interpretation matter as much as the image, avoiding testing by name alone.
Check availability- 01
Define what needs clarification
The doctor relates symptoms, examination and prior tests to whether imaging answers the question.
- 02
Receive test instructions
The team confirms preparation, location and personal considerations before scheduling.
- 03
Obtain images around the anal canal
An ultrasound probe shows sphincters and nearby tissues in a 360° view.
- 04
Integrate results into care
Images are interpreted with the clinical concern to choose treatment, follow-up or further assessment.
Possible findings
Imaging relates anatomy to the problem needing treatment
An isolated finding is not the whole story. Its value comes from symptoms, function and history.
Internal and external sphincters
Imaging shows muscle rings contributing to anal closure.
Defects or scars
Locates discontinuities or anatomical changes related to childbirth, injuries or previous surgery.
Fistula tracts
In selected cases, identifies the course and sphincter relationship.
Nearby tissues and collections
Complements inflammation or abscess assessment without replacing active infection care.
Before the test
Confirm instructions for your assessment's purpose
The team adapts the protocol for pain, inflammation, previous surgery or history and confirms preparation and location before scheduling.
Clinical interpretation
Imaging informs a decision when related to symptoms and function
Assessment integrates imaging, examination, history and other tests to define treatment or further investigation.
Specialist care
Assessment by a colon, rectal and anal specialist
Dr. Eduardo Navarro Lara is a colorectal surgeon offering 360° endoanal ultrasound in his current practice.
Assessment determines whether the test addresses your problem and interprets results within treatment options.
Explore his training and experienceCare for patients in Guadalajara, Zapopan and the metropolitan area
Request assessment and confirm test availability
Our support team checks appointments at Unidad Médica Shakespeare or Torre de Consultorios Hospital Ángeles Andares. Test location and scheduling are confirmed during care.
Frequently asked questions
What to know before requesting endoanal ultrasound
What does 360° ultrasound mean?
The probe images the full anal canal circumference, showing cross-sectional relationships between sphincters and surrounding tissues.
How does it help with fecal incontinence?
It checks sphincter injury or anatomical changes, interpreted alongside symptoms and functional tests.
Can it show an anal fistula?
Yes. In selected cases it shows the tract and sphincter relationship. Complex fistulas may need MRI or further assessment.
Is it the same as anoscopy?
No. Anoscopy views the lining directly; ultrasound images surrounding muscles and tissues.
Does it replace colonoscopy?
No. Colonoscopy views inside the colon; endoanal ultrasound focuses on sphincters and tissues around the anal canal.
Does the test hurt?
Probe insertion may cause discomfort. Discuss severe pain, inflammation or active infection beforehand for suitable instructions.
What preparation do I need?
The team adapts preparation to its protocol and your situation. Do not use enemas or stop medication from general advice.
What do I need to send via WhatsApp?
Simply ask about appointment times and availability. Clinical details and previous tests are reviewed through the appropriate channel.
360° endoanal ultrasound
Find out whether this test supplies the imaging your treatment needs
Request assessment with Dr. Eduardo Navarro to review the test's purpose and confirm availability.