Muscles
Sphincter Ani Trigger Points
Symptom Area: Torso
Sphincter Ani Trigger Points are explored here through their location and referred pain pattern. Muscle knots is an everyday term used for tender muscular spots; myofascial pain describes pain involving muscle and its surrounding connective tissue. Anal sphincter muscle; trigger points cause local anal and perineal pain, often described as a deep cramping ache.
Where you feel it
When the Sphincter Ani holds active trigger points, you usually notice it as anal pain and painful bowel movements. Where the pain spreads: Local pain in and around the anus and perineum, sometimes deep cramping episodes that are worse when sitting or during bowel movements. What often sets it off: Chronic straining and constipation, haemorrhoids or fissures, childbirth or anorectal surgery, habitual clenching under stress, prolonged sitting.
Overview
The external anal sphincter surrounds the anal canal and maintains continence under voluntary control, blending with the puborectalis sling and the perineal body. Persistent overactivity here contributes to proctalgia and chronic perineal pain.
Trigger point locations
Points in the sphincter ring and in the adjacent perineal body, found on internal rectal examination.
Referred pain pattern
Local pain in and around the anus and perineum, sometimes deep cramping episodes that are worse when sitting or during bowel movements.
Palpation & testing
Rectal palpation by an appropriately trained clinician, assessing resting tone and tender bands quadrant by quadrant.
Common causes
Chronic straining and constipation, haemorrhoids or fissures, childbirth or anorectal surgery, habitual clenching under stress, prolonged sitting.
Self-care & clinical treatment
Bowel habit and fibre management to avoid straining, warm baths, down-training the pelvic floor with diaphragmatic breathing. Clinically: internal manual release by a pelvic health specialist and colorectal assessment to exclude local pathology.
Treatment protocol
For Sphincter Ani, the general protocol applies: sustained pressure release on the taut band, then stretch and active movement in the newly gained range.
Position and palpation: Rectal palpation by an appropriately trained clinician, assessing resting tone and tender bands quadrant by quadrant.
Regional precaution for clinicians: Over the rib cage the only safe needling direction is tangential or onto a rib; perpendicular needling of an intercostal space risks pneumothorax.
Primary Symptoms
Related muscles in this region
References
- • triggerpoints.net — reference
Medically reviewed by: Marco Aruffo — physiotherapist since 2006, specialised in myofascial pain · Last reviewed:
