A trigger finger is a common disorder of later adulthood characterized by catching, snapping or locking of the involved finger flexor tendon, associated with dysfunction and pain. In the video above hand surgeon Dr. Neema Amin (John Randolph Medical Center) describes treatment options and when to seek medical attention when the trigger finger gets more frequent or painful.

What causes trigger finger – a.k.a. stenosing tenosynovitis?

Causes for this condition are not always clear. Some trigger fingers are associated with medical conditions such as rheumatoid arthritis, gout, and diabetes. Local trauma to the palm/base of the finger may be a factor on occasion, but in most cases there is not a clear cause.

Learn more about the role of a trigger finger in a hand assessment for Diabetes Mellitus or Rheumatoid Arthritis:

28 Hand characteristics in Rheumatoid Arthritis
33 Hand characteristics in Diabetes Millitus

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The “Preacher Sign” involves the inability to flatten the hands against each other – a hand characteristic that is frequently seen in diabetes mellitus patients.

Diabetes mellitus belongs to a category of diseases that is known for having quite a few hand markers that ‘signal’ the development of the disease. Type 1 and type 2 have many common characteristics regarding the hands, but one has to be aware that some of them are limited to only one variant of the disease.

The most revealing dimensions of the hand in diabeter are: the MOTORICS (including the “Preacher Sign”), the FINGERNAILS, the SKIN QUALITY & the DERMATOGLYPHICS. And even the notorious simian crease is about twice to four times more often seen among diabetic patients – compared to the general population.
The following article presents an overview of 33 hand markers for Diabetes Mellitis – type 2 (all reported features have been confirms as ‘signficant’ in various scientific studies:
 
 
(A ‘phantom picture’ for the hand in diabetes will become available later)