Taylor’s Sign (Ts…)

What is Ts... (Taylor's sign)?

Taylor’s sign, sometimes written as “Ts…”, is a clinical finding that indicates irritation or inflammation of the psoas muscle and the underlying retroperitoneal structures. It is elicited by passively extending the patient’s right thigh while they are lying on their left side (or by asking the patient to actively lift the right leg against resistance). A positive Taylor’s sign reproduces pain in the right lower abdominal quadrant. The sign is most commonly associated with appendicitis, but it can be seen in other intra‑abdominal or retroperitoneal conditions that involve the psoas muscle.

Because the psoas muscle lies close to the appendix, inflamed or perforated appendix can irritate it, causing pain when the muscle is stretched. Detecting Taylor’s sign helps clinicians differentiate appendicitis from other causes of abdominal pain and can prompt early imaging or surgical consultation.

Sources: Mayo Clinic, Cleveland Clinic, UpToDate, WHO guidelines on acute abdomen.

Common Causes

While appendicitis is the classic cause, a positive Taylor’s sign can be produced by several other pathologies that involve the psoas muscle or adjacent retroperitoneal structures.

• Acute appendicitis – especially retrocaecal or pelvic appendix
• Appendiceal abscess or perforation
• Psoas abscess – bacterial infection of the muscle
• Pyelonephritis or renal/ureteric calculi – inflammation near the psoas
• Retroperitoneal hematoma – trauma or anticoagulation‑related bleeding
• Inflammatory bowel disease flare (Crohn’s disease) – involvement of the terminal ileum
• Pelvic inflammatory disease (PID) – spread of infection to the psoas
• Spinal disc herniation or vertebral osteomyelitis – irritation of the psoas muscle
• Diverticulitis of the right colon – rare but can mimic appendicitis
• Malignancy – retroperitoneal tumors infiltrating the psoas (e.g., lymphoma)

Associated Symptoms

Taylor’s sign rarely occurs in isolation. The following symptoms often accompany a positive sign, depending on the underlying cause.

• Fever or chills (common in infection such as appendicitis or psoas abscess)
• Localized right lower‑quadrant (RLQ) abdominal tenderness
• Nausea, vomiting, or loss of appetite
• Back or flank pain that worsens with hip extension
• Changes in bowel habits (diarrhea or constipation) – especially with IBD or diverticulitis
• Hematuria or dysuria – suggestive of urinary tract involvement
• Weight loss or night sweats – possible red flag for malignancy or chronic infection
• Limited hip range of motion due to pain

When to See a Doctor

A positive Taylor’s sign should prompt medical evaluation, especially when accompanied by any of the following:

• Persistent or worsening abdominal pain lasting more than 6 hours
• Fever ≥ 38 °C (100.4 °F) or chills
• Vomiting that does not improve
• Inability to pass gas or have a bowel movement
• Blood in stool or urine
• Rapid heart rate (tachycardia) or low blood pressure
• Recent trauma to the abdomen or hip
• History of immune compromise (e.g., diabetes, HIV, chronic steroid use)

If you notice any of these, seek care promptly—delays can lead to perforation, sepsis, or permanent organ damage.

Diagnosis

Evaluating a patient with a suspected Taylor’s sign involves a stepwise approach.

1. Clinical History & Physical Exam

• Detailed pain characterization (onset, location, radiation, aggravating/relieving factors).
• Assessment for associated systemic symptoms (fever, malaise).
• Performance of Taylor’s (psoas) sign: with the patient in left lateral decubitus, extend the right thigh passively and note pain.
• Other abdominal signs: McBurney’s point tenderness, Rovsing’s sign, rebound tenderness.

2. Laboratory Tests

• Complete blood count (CBC) – leukocytosis suggests infection.
• C‑reactive protein (CRP) / ESR – markers of inflammation.
• Urinalysis – to rule out urinary causes.
• Blood cultures if sepsis is suspected.

3. Imaging

• Ultrasound – first‑line for children, pregnant women, or thin adults; can identify appendiceal enlargement or abscess.
• CT abdomen/pelvis with contrast – gold standard for adult acute abdomen; shows inflamed appendix, psoas abscess, or other retroperitoneal pathology.
• MRI – useful when radiation avoidance is essential (e.g., pregnancy).

4. Additional Tests (if indicated)

• Stool studies for infection or occult blood.
• Colonoscopy (rare, usually after acute episode resolves) if chronic right‑sided pain persists.
• Biopsy of a psoas mass if malignancy is suspected.

Treatment Options

Treatment is directed at the underlying cause. Below are the most common therapeutic pathways.

1. Acute Appendicitis

• Surgical removal (appendectomy) – either laparoscopic or open; performed within 12–24 hours of diagnosis.
• Pre‑operative antibiotics (e.g., ceftriaxone + metronidazole) to reduce infection risk.
• Post‑operative analgesia and gradual return to activity.

2. Psoas Abscess

• Broad‑spectrum intravenous antibiotics (e.g., vancomycin + cefepime) pending culture results.
• Image‑guided percutaneous drainage or surgical drainage if the abscess is large (> 3 cm) or refractory.
• Physical therapy after infection control to restore hip mobility.

3. Urinary Tract / Renal Causes

• Targeted antibiotics for pyelonephritis (e.g., ciprofloxacin).
• Ureteral stenting or lithotripsy for obstructing stones.

4. Inflammatory Bowel Disease Flare

• Corticosteroids (e.g., prednisone) for acute control.
• Biologic agents (infliximab, adalimumab) for maintenance.
• Nutritional support and close gastroenterology follow‑up.

5. Conservative / Home Measures (adjunctive)

• Heat packs to the flank (but avoid if infection is suspected).
• Gentle hip stretching after pain subsides.
• Hydration and balanced diet to support healing.
• Over‑the‑counter analgesics (acetaminophen or ibuprofen) for mild pain, unless contraindicated.

Prevention Tips

While many causes of a positive Taylor’s sign cannot be completely avoided, risk reduction strategies exist.

• Maintain a high‑fiber diet and adequate hydration to prevent fecal impaction that may predispose to appendicitis.
• Promptly treat urinary tract infections to avoid spread to the retroperitoneum.
• Practice safe sex and routine gynecologic care to reduce PID risk.
• Avoid intravenous drug use and maintain good skin hygiene to lower the chance of psoas abscess.
• Wear protective gear during high‑impact sports or work that could cause abdominal trauma.
• Regular medical check‑ups for chronic conditions (diabetes, immunosuppression) that increase infection risk.
• Follow postoperative instructions after abdominal surgery to recognize early signs of complications.

Emergency Warning Signs

Summary

Taylor’s sign is a valuable bedside maneuver that signals irritation of the psoas muscle, most often pointing toward acute appendicitis but also indicating a range of retroperitoneal disorders. Recognizing the sign, understanding its possible causes, and acting quickly—especially when red‑flag symptoms arise—can dramatically improve outcomes. Prompt evaluation, appropriate imaging, and targeted treatment (surgical or medical) remain the cornerstones of care.

For personalized advice or if you suspect you have a condition associated with Taylor’s sign, contact your healthcare provider without delay.

References:

• Mayo Clinic. “Appendicitis.” Accessed May 2024.
• Cleveland Clinic. “Psoas Abscess.” Accessed May 2024.
• UpToDate. “Evaluation of the adult with acute abdominal pain.” Updated 2024.
• World Health Organization. “Guidelines for the management of acute appendicitis.” 2023.
• National Institutes of Health (NIH). “Urinary Tract Infections.” 2022.