Possible causes for finger numbness:
http://www.wrongdiagnosis.com/symptoms/finger_numbness/causes.htm
numbness related to CTS:
http://www.ninds.nih.gov/disorders/carpal_tunnel/detail_carpal_tunnel.htm
http://www.wrongdiagnosis.com/symptoms/finger_numbness/causes.htm
numbness related to CTS:
http://www.ninds.nih.gov/disorders/carpal_tunnel/detail_carpal_tunnel.htm