How is trigger finger (TF) diagnosed?

Updated: Apr 26, 2021
  • Author: Satishchandra Kale, MD, MBBS, MBA, MCh(Orth), FRCS(Edin), FRCS(Tr&Orth); Chief Editor: Harris Gellman, MD  more...
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As a rule, no lab tests are needed in the diagnosis of TF. If there is a concern regarding an associated, undiagnosed condition, such as diabetes mellitus (DM), RA, or another connective tissue disease, tests such as those assessing glycosylated hemoglobin (HgbA1c), fasting blood sugar, or rheumatoid factor should be ordered.

Radiography rarely is indicated in TF. [5] Hand radiographs are performed only if abnormal pathology (eg, abnormal sesamoids, loose bodies in the MCP joint, osteoarthritic spurs on the metacarpal head, avulsion injuries of collateral ligaments) is suspected.

See Workup for more detail.

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