You may use a certificate of citizenship or a naturalization certificate, to prove that you are a US citizen. But both the documents are not the same. A US citizenship certificate is granted to a person who acquires or derives citizenship from his US citizen parents.
Causes Of Twitching Of Fingers And Thumb. 1  Carpel tunnel syndrome causes twitching of muscles as the median nerve through the carpel tunnel becomes compressed. 2  A less disconcerting cause is muscle cramps that happen when small muscles in the hand contract.
1 Trigger finger is a type of tendinitis which develops in the tendons which bend the fingers. 2  It is a common problem because of the way that the hand is made, which may be a little different than you would suspect. 3  There are no muscles in the fingers themselves.4  We actually move our fingers by remote control. Tendon swelling (tendinitis) results from a person's own tendency to collect fluid around their tendons and joints. 2  This may be aggravated by repetitive or strenuous activities. 3  When the tendons which bend the fingers (the flexor tendons) become irritated, they can cause pain, swelling, and stiffness.