If left untreated, carpal tunnel syndrome can lead to weakness and lack of coordination in your fingers and thumb.
[newsnetwork.mayoclinic.org]
Symptoms include tingling, numbness, pain, and weakness in the distribution of the median nerve, which supplies sensation to the thumb, index, middle, and part of the ring
[hss.edu]
Other symptoms include muscle weakness in the hand and wrist, tingling, and impaired reflexes.
[healthcommunities.com]