Sudden hand soreness is associated with muscle strain, overexertion, and cervical spondylosis. Sudden hand acidity is related to the following factors: 1. Muscle strain: hand long time to keep the same action, often use force and heavy physical labor, physical exercise can cause hand muscle strain, so that weakness, pain, soreness and other symptoms. 2. Excessive force: If the hand is not exercised for a long time, hand acidity can occur when the movement is too violent. 3. Cervical spondylosis: small joint dislocation, disc herniation, osteophytes and other compression of the nerve root when the neck can appear hand soreness, fatigue, pain, numbness and other phenomena. Suddenly hand acidity may also be caused by other reasons, it is recommended to the regular hospital to do a comprehensive and detailed examination, to clarify the cause of the disease, give standardized treatment.