Rectus Abdominis

Symptoms patients report

Abdominal pain Midline abdominal aching that may mimic visceral pain from rectus trigger referral

Heartburn-like pain Epigastric burning sensation from upper rectus trigger points mimicking gastric reflux

Lower sternum pain Xiphoid process discomfort from upper rectus abdominis trigger point referral pattern

Pubic pain Suprapubic aching from lower rectus abdominis trigger point referred pain pattern

Back pain Horizontal band of low back pain referred from anterior rectus abdominis trigger points

Suprapubic pain mimicking bladder pathology Lower rectus abdominis trigger points refer to the suprapubic region mimicking cystitis or interstitial cystitis

Lower abdominal cramping Taut bands in the lower rectus create cramping pain in the lower abdominal wall

Urinary urgency Urinary urgency can coexist with abdominal or pelvic pain and needs its own assessment; an abdominal tender point does not establish its cause.

Dysmenorrhea-like pain Suprapubic referral mimics menstrual cramping through shared segmental innervation pathways

Inguinal region discomfort Lateral referral from lower rectus extends to the inguinal region mimicking hernia or adductor pathology

Epigastric pain mimicking heartburn Upper rectus trigger points near the xiphoid create epigastric pain mimicking gastroesophageal reflux

Bilateral mid-back ache Posterior referral creates a horizontal band of aching across the bilateral mid-thoracic back

Substernal fullness sensation Referral to the substernal area creates a sensation of pressure and fullness behind the sternum

Nausea Nausea with abdominal pain has several possible causes; it should not be explained solely by an abdominal trigger point.

Upper abdominal wall tenderness Taut bands in the upper rectus create palpable tenderness in the epigastric abdominal wall

Periumbilical cramping Mid-belly rectus abdominis trigger points create cramping pain around the umbilical region

Abdominal bloating sensation Trigger point-mediated abdominal wall tension creates a perceived bloating without actual distension

Mid-abdominal wall tenderness Taut bands in the periumbilical rectus create localized abdominal wall tenderness on palpation

Functional abdominal pain Somatic trigger point pain in the rectus mimics functional gastrointestinal disorders diagnostically

Sense of abdominal fullness without distension Trigger point-mediated abdominal wall sensitivity creates fullness perception without visible distension

Common causes

Sit-ups/crunches Repetitive concentric loading of rectus abdominis during core exercises causes fiber overload

Coughing Forceful repeated expiratory contractions strain rectus abdominis during prolonged cough episodes

Pregnancy Sustained abdominal wall stretching during pregnancy overloads rectus abdominis eccentrically

Overexertion Acute abdominal muscle overload during intense physical effort activates latent trigger points

Poor lifting technique Excessive abdominal bracing during improper lifting overloads rectus abdominis fibers

Stress Emotional tension causes chronic abdominal guarding and sustained rectus contraction

Excessive sit-ups or crunches High-volume abdominal flexion exercises overload the lower rectus abdominis creating trigger points

Post-abdominal surgery adhesions Surgical scarring restricts lower abdominal wall mobility creating compensatory trigger points

Chronic coughing Repeated forceful coughing generates sustained lower rectus contraction and ischemic trigger points

Post-pregnancy diastasis recti Abdominal wall separation alters rectus loading creating compensatory trigger points in remaining fibers

Heavy lifting with abdominal straining Valsalva maneuver during heavy lifting generates extreme lower rectus abdominis contraction forces

Excessive crunches targeting upper abs High-volume upper abdominal exercises overload the upper rectus abdominis fibers near the xiphoid

Chronic upper abdominal surgery adhesions Upper abdominal surgical scarring restricts tissue mobility creating secondary trigger points

Prolonged forward flexed posture Sustained trunk flexion shortens the upper rectus abdominis creating chronic ischemic trigger points

Chronic anxiety with abdominal bracing Psychogenic abdominal guarding maintains chronic upper rectus contraction and trigger point formation

GERD-related chronic muscle guarding Persistent epigastric discomfort from reflux creates secondary protective upper rectus guarding

Abdominal surgery with periumbilical incision Surgical disruption at the periumbilical region creates scar tissue and persistent trigger points

Excessive core exercises High-volume core training overloads the mid-rectus abdominis creating periumbilical trigger points

Chronic constipation with straining Repeated Valsalva maneuver during straining generates sustained mid-abdominal wall contraction

Umbilical hernia repair adhesions Post-hernia repair scarring restricts periumbilical tissue mobility creating compensatory trigger points

Prolonged seated posture compressing abdomen Flexed sitting compresses the mid-abdominal wall creating sustained ischemia in periumbilical rectus

Treatment & self-care

Associated Trigger Points

• Obliques
• Psoas
• Quadratus lumborum
• Rectus abdominis TrP1
• Pyramidalis
• Iliopsoas TrP1
• Internal obliques TrP1
• Transversus abdominis TrP1
• External obliques TrP3
• Diaphragm TrP1
• Intercostal muscles TrP1
• Rectus abdominis TrP2
• Rectus abdominis TrP3