The Scaphoid Compression Test is a wrist special test used to provoke scaphoid-region pain by applying axial compression through the thumb and first metacarpal. It is commonly used after a fall onto an outstretched hand or wrist trauma when scaphoid fracture is part of the assessment reasoning.
A positive finding may include familiar radial-sided wrist pain, anatomical snuffbox pain, scaphoid tubercle pain or injury-related symptom reproduction during axial thumb loading. However, the test does not confirm or exclude scaphoid fracture on its own. Scaphoid injuries can be missed on initial radiographs, and clinical tests should be interpreted alongside mechanism, tenderness, swelling, imaging and referral pathways where appropriate.
The Scaphoid Compression Test is a commonly used wrist special test for suspected scaphoid injury. The scaphoid is one of the carpal bones on the radial side of the wrist and is frequently injured during falls onto an outstretched hand.
Scaphoid injuries are important because some fractures can be difficult to detect early and may have complications if not recognised appropriately. The Scaphoid Compression Test aims to reproduce scaphoid-region pain by applying longitudinal compression through the thumb and first metacarpal toward the scaphoid.
The test is usually performed with other scaphoid clinical findings, including anatomical snuffbox tenderness and scaphoid tubercle tenderness. These findings may increase suspicion, but no single clinical test should be used to exclude an occult scaphoid fracture.
For Measurz, the test should be recorded carefully as a screening and assessment-reasoning finding, not as diagnostic confirmation. Record the mechanism of injury, side tested, exact pain location, pain score, swelling, tenderness findings, radiograph status if known and whether further assessment or referral is appropriate.
Test name: Scaphoid Compression Test
Region: Wrist / radial carpus
Primary purpose: Provoke scaphoid-region pain with axial thumb compression
Commonly associated presentation: Suspected scaphoid injury or occult scaphoid fracture after wrist trauma
Positive finding: Familiar radial wrist, snuffbox or scaphoid tubercle pain during axial thumb compression
Negative finding: No familiar scaphoid-region pain during compression
Main limitation: A negative test does not exclude scaphoid fracture, especially after trauma with ongoing suspicion.
The Scaphoid Compression Test is a wrist provocation test.
The professional holds the client’s thumb and applies axial compression through the first metacarpal toward the wrist. The test aims to load the scaphoid region and reproduce pain if the scaphoid or nearby structures are injured or irritable.
The test may be used to observe:
Radial-sided wrist pain
Anatomical snuffbox pain
Scaphoid tubercle pain
Familiar injury-related symptoms
Side-to-side difference
Compression sensitivity
Need for further assessment
The test should be part of a broader scaphoid assessment rather than used alone.
The Scaphoid Compression Test may be used to support assessment reasoning around:
Suspected scaphoid fracture
Occult scaphoid fracture after normal initial radiographs
Radial-sided wrist pain after trauma
Fall onto an outstretched hand
Pain with thumb or wrist loading
Scaphoid-region tenderness
Need for further imaging or referral discussion
Baseline and retest documentation in Measurz
The test is useful because it is quick and directly loads the radial carpus through the thumb. However, it has important diagnostic limitations.
The Scaphoid Compression Test assesses symptom response to axial compression through the thumb and first metacarpal.
It may provide information about:
Radial wrist pain provocation
Scaphoid-region irritability
Compression sensitivity
Symptom reproduction after trauma
Side-to-side difference
Whether scaphoid injury remains part of the assessment reasoning
It does not directly assess:
Scaphoid fracture with certainty
Fracture displacement
Fracture union
Bone vascularity
Ligament integrity
Imaging findings
Wrist strength
Return-to-sport readiness
Return-to-work readiness
Treatment need
The Scaphoid Compression Test may be useful for clients with:
Radial-sided wrist pain
Wrist pain after a fall onto an outstretched hand
Anatomical snuffbox tenderness
Scaphoid tubercle tenderness
Wrist swelling after trauma
Pain with gripping or weight-bearing through the hand
Suspected scaphoid injury
Ongoing wrist pain despite normal initial radiographs
A need for baseline and referral documentation
It may also be useful for professionals learning how wrist trauma findings are combined for assessment reasoning.
Consider using the Scaphoid Compression Test when:
The client reports wrist trauma
Mechanism suggests fall onto an outstretched hand
Radial wrist pain is present
Anatomical snuffbox or scaphoid tubercle tenderness is present
The client has pain with thumb loading or wrist compression
You are documenting suspected scaphoid involvement
You are building a broader wrist trauma assessment profile
The test should be used with caution and should not delay appropriate referral or imaging when clinical suspicion remains.
Use caution or avoid the test when:
Severe acute wrist pain is present
Obvious deformity, major swelling or suspected dislocation is present
Fracture is strongly suspected and provocative testing is unnecessary
The client cannot tolerate thumb compression
There is neurological compromise
Pain is too irritable for meaningful testing
The professional is outside their scope for acute trauma decision-making
Stop the test if pain increases sharply, the client asks to stop, or symptoms are too irritable to interpret.
The Scaphoid Compression Test usually requires no equipment.
Optional equipment includes:
Measurz app
Pain rating scale
Notes field for mechanism, pain location and comparison side
Wrist range of motion record
Grip strength record only if safe and appropriate
Imaging/referral notes if relevant
Splinting or immobilisation notes if relevant and within professional scope
Ask the client about the mechanism of injury before testing.
Key questions include:
Was there a fall onto an outstretched hand?
Was the wrist extended, radially deviated or loaded?
Where is the pain?
Was there immediate swelling?
Have radiographs or imaging been performed?
Is pain worsening or persisting?
Explain the test:
“I am going to apply a gentle compression through your thumb toward the wrist. Tell me if this reproduces your familiar wrist pain and where you feel it.”
The client may sit with the forearm supported on a table or plinth.
The wrist should be relaxed and accessible.
The thumb should be relaxed enough for the professional to apply controlled axial compression.
The professional sits or stands facing the client’s hand.
They should be able to support the wrist and control the thumb without twisting it forcefully.
Hold the client’s thumb or first metacarpal.
Use the other hand to support the wrist or forearm if needed.
Avoid painful gripping.
Stabilise the wrist enough to prevent uncontrolled movement.
Do not force the wrist into painful extension or deviation unless using another specific test.
Apply axial compression along the thumb and first metacarpal toward the scaphoid/radial wrist.
The force should be:
Gentle
Controlled
Gradual
Symptom-limited
Compared with the other side where appropriate
Tell the client:
“Tell me if this reproduces your familiar pain. Point to exactly where you feel it.”
A positive finding may include:
Familiar radial-sided wrist pain
Anatomical snuffbox pain
Scaphoid tubercle pain
Pain deep in the scaphoid region
Reproduction of injury-related symptoms
Clear difference compared with the other side
Record the exact pain location.
A negative finding may include:
No familiar radial wrist pain
No scaphoid-region pain
No meaningful side-to-side difference
Only mild non-familiar pressure discomfort
A negative finding does not exclude scaphoid fracture.
Stop the test if:
Pain increases sharply
The client cannot tolerate compression
Swelling or deformity suggests testing is inappropriate
The client asks to stop
The professional considers further provocation unnecessary
This test should be gentle. In suspected scaphoid fracture, clinical tests should not be used to clear the wrist for loading or sport. Ongoing suspicion after trauma warrants appropriate medical imaging or referral pathways.
A positive Scaphoid Compression Test may increase suspicion that the scaphoid region is involved, especially after a fall onto an outstretched hand and when pain is localised to the anatomical snuffbox or scaphoid tubercle.
However, a positive test does not confirm a scaphoid fracture. Pain may also arise from scaphotrapeziotrapezoid region irritation, first carpometacarpal region sensitivity, radial wrist sprain, scapholunate injury, thumb structures or general post-traumatic wrist irritability.
A negative Scaphoid Compression Test does not exclude scaphoid fracture. This is particularly important when the mechanism, snuffbox tenderness, tubercle tenderness, swelling or ongoing pain still raises suspicion.
The finding is more meaningful when interpreted with:
Mechanism of injury
Anatomical snuffbox tenderness
Scaphoid tubercle tenderness
Pain with wrist movement
Swelling
Grip tolerance
Radiographs
MRI/CT where relevant
Referral or immobilisation guidance where appropriate
Diagnostic accuracy varies across studies and depends on the population, timing after injury and reference standard.
Evidence and guidelines consistently caution against relying on any single clinical test to exclude scaphoid fracture. A 2023 systematic review of occult scaphoid fractures found that no single clinical feature satisfactorily excludes occult scaphoid fracture when initial radiographs are normal. Absence of anatomical snuffbox tenderness reduced the likelihood of occult fracture, but did not fully rule it out.
Acute scaphoid fracture guidelines note that the three commonly used clinical tests include anatomical snuffbox tenderness, scaphoid tubercle tenderness and pain with axial thumb compression. These tests can be sensitive, but axial thumb compression has been described as having weaker diagnostic performance and should not stand alone.
Condition or presentation: Suspected scaphoid fracture / occult scaphoid fracture
Population: Wrist trauma populations, often after fall onto an outstretched hand
Test variation: Axial thumb compression / Scaphoid Compression Test
Reference standard: MRI, CT, follow-up imaging or clinical fracture confirmation depending on study
Sensitivity: Variable across studies; some older studies report high sensitivity, but pooled review conclusions do not support single-test exclusion
Specificity: Variable and often insufficient for stand-alone confirmation
Positive likelihood ratio: Not consistently strong enough for stand-alone diagnosis
Negative likelihood ratio: Not consistently strong enough to safely exclude fracture alone
Key limitations: Study heterogeneity, timing after injury, radiograph status, reference standard differences and variable test definitions.
Plain-language interpretation:
A positive test may increase suspicion when the history and pain location fit.
A negative test does not clear the client.
Scaphoid fracture can be occult on initial radiographs.
Ongoing suspicion should be managed through appropriate medical imaging/referral pathways.
The test is best recorded as part of a cluster.
Reliability evidence for the Scaphoid Compression Test varies and is influenced by examiner force and pain interpretation.
Reliability may be affected by:
Amount of axial force
Thumb position
Wrist position
Client irritability
Time since injury
Pain threshold
Definition of a positive result
Whether snuffbox or tubercle pain is also present
Validity is limited as a stand-alone diagnostic test. The test has face validity because it loads the scaphoid region, but it cannot verify fracture presence, displacement or healing status.
Reliability improves when the professional records:
Mechanism of injury
Force direction
Pain location
Pain score
Time since injury
Associated tenderness findings
Radiograph status
Comparison side
Test confidence
Common errors include:
Using the test to clear suspected scaphoid fracture
Applying too much force
Not recording exact pain location
Not combining with snuffbox and tubercle tenderness
Ignoring mechanism of injury
Assuming normal initial radiographs exclude fracture
Testing repeatedly despite high irritability
Not considering referral or imaging when suspicion remains
Treating radial wrist pain as specific to scaphoid fracture
Limitations include:
A single test cannot confirm or exclude fracture
Pain is not specific to the scaphoid
Early radiographs may be normal
Compression force is difficult to standardise
Acute pain may limit test accuracy
Test performance varies across studies
Decisions about immobilisation/imaging require appropriate professional judgement
The Scaphoid Compression Test may be useful for:
Radial wrist trauma assessment
Scaphoid-region symptom provocation
Documentation of suspected scaphoid involvement
Side-to-side comparison
Supporting referral notes
Baseline and follow-up documentation
Client education about why wrist trauma may need further assessment
In Measurz, it can be recorded alongside anatomical snuffbox tenderness, scaphoid tubercle tenderness, wrist range of motion, grip strength if appropriate, swelling notes, imaging notes and referral recommendations.
Record:
Test name: Scaphoid Compression Test
Side tested
Mechanism of injury
Time since injury
Result: positive, negative, unclear or unable to test
Pain score
Exact pain location
Anatomical snuffbox tenderness: yes/no
Scaphoid tubercle tenderness: yes/no
Swelling
Bruising if present
Wrist range limitation
Compression force: gentle/moderate
Whether symptoms were familiar
Comparison side
Imaging status if known
Reason for stopping if relevant
Related wrist findings
Confidence in interpretation
Further assessment/referral notes if appropriate
Retest date if relevant
Recording these details improves repeatability, communication, client education, assessment reasoning, monitoring over time, team consistency and reporting quality.
Anatomical Snuffbox Tenderness
Scaphoid Tubercle Tenderness
Wrist Range of Motion
Grip Strength
Scapholunate Ballottement Test
Watson / Scaphoid Shift Test
TFCC Compression Test
Wrist Extension Loading Test
Radial Deviation and Ulnar Deviation Assessment
Hand and Wrist Functional Assessment
It assesses whether axial compression through the thumb reproduces scaphoid-region or radial wrist pain.
A positive finding is reproduction of familiar radial wrist, anatomical snuffbox or scaphoid tubercle pain during axial thumb compression.
No. It may increase suspicion, but it does not confirm scaphoid fracture on its own.
No. A negative test does not exclude scaphoid fracture, particularly after trauma with ongoing suspicion.
Some scaphoid fractures can be difficult to identify early and may require appropriate imaging, immobilisation or referral pathways.
The test should be gentle. Familiar pain should be recorded, but the thumb should not be forcefully compressed.
Mechanism of injury, anatomical snuffbox tenderness, scaphoid tubercle tenderness, swelling, wrist range of motion, imaging and referral guidance where appropriate.
Yes. Measurz can record pain, tenderness, range, functional tolerance and referral/imaging notes over time.
The Scaphoid Compression Test applies axial load through the thumb to provoke scaphoid-region pain.
It is commonly used after radial wrist trauma or fall onto an outstretched hand.
A positive test may increase suspicion when the mechanism and pain location fit.
A negative test does not exclude scaphoid fracture.
No single clinical feature should be used to clear suspected occult scaphoid fracture.
Measurz recording should include mechanism, side, pain location, pain score, snuffbox/tubercle tenderness, imaging status and further assessment notes.
Clementson, M., Jørgsholm, P., Besjakov, J., Thomsen, N. O. B., & Björkman, A. (2020). Acute scaphoid fractures: Guidelines for diagnosis and treatment. EFORT Open Reviews, 5(2), 96–103. https://doi.org/10.1302/2058-5241.5.190025
Coventry, L. S., Oldrini, I., Dean, B. J. F., Novak, A., Duckworth, A. D., & Metcalfe, D. (2023). Which clinical features best predict occult scaphoid fractures? A systematic review of diagnostic test accuracy studies. Emergency Medicine Journal, 40(8), 576–583. https://doi.org/10.1136/emermed-2023-213119
Grover, R. (1996). Clinical assessment of scaphoid injuries and the detection of fractures. Journal of Hand Surgery, 21(3), 341–343.
Mallee, W. H., Wang, J., Poolman, R. W., Kloen, P., Maas, M., & de Vet, H. C. W. (2014). Computed tomography versus magnetic resonance imaging versus bone scintigraphy for clinically suspected scaphoid fractures in patients with negative plain radiographs. Cochrane Database of Systematic Reviews, 2014(6), CD010023. https://doi.org/10.1002/14651858.CD010023.pub2
Parvizi, J., Wayman, J., Kelly, P., Moran, C. G., & Lecky, F. (1998). Combining the clinical signs improves diagnosis of scaphoid fractures: A prospective study with follow-up. Journal of Hand Surgery, 23(3), 324–327.
