Traumatic Injury
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Trigger finger can be caused by injuries due to accidents or other reasons. A person who has suffered a severe accident that affects his fingers is likely to experience an escalation or inflammation of the hand sheath. The tendons and ligaments of the hand can be ripped or swollen depending on the type of injury. In such a case, the person may have multiple disorders like trigger finger or hand muscle damage. Trigger finger can be caused by traumatic injuries.