It is Tenosynovitis, in which there is symptoms of finger numbness, tingling sensation, soreness, and pain when medial nerve of wrist area is impacted by swelling and hypertrophy of digiti manus flexor ligament.
In Chinese Medicine, this disease or "numbness" pertains to "Bi-Syndrome." The main sources are invasion of cold-damp into the sinew, invasion of wind pathogenic factors into skin. Carpal Tunnel Syndrome could form when blood becomes stagnant in the meridian after slight trauma such as falling down, which prevents dispersion and extension of Qi-Blood.
Numbness of finger(s) and pricking pain is aggravated at night. In the latter period, the palm's thenar eminence muscle becomes atrophied and muscular strength decreases.