IRCT20180804040685N1 IRCT 2018-11-07 Tehran University of Medical Sciences Distal jnjection in Carpal tunnel syndrome ; Effect of Proximal injection in treatment of Carpal tunnel syndrome ; CTS Comparison of the efficacy of steroid injection via proximal and distal approach on the symptoms and function in patients with mild and moderate Carpat Tunnel Syndrome 2018-09-23 anticipated 32 Complete https://irct.ir/trial/33171 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Based on the quadruple number block ;. N/A Carpal Tunnel Syndrome. Intervention 1: Intervention group : Injection (40 mg Methyl prednisolone) distal to crease; All injections would be made via insulin needle (gauge 29, and length 2.1 inch). Distal method injection takes place on volar section under wrist crease (palmar) and needle entrance angle would be 5-10 degrees or parallel to the arm (In this case wrist would be placed at dorsiflexion state 40-50 degrees). One and three months after the injection, patients will be reevaluated in terms of severity of symptoms and three months after the injection, patients will be reevaluated in terms of severity of symptoms and functional status (VAS- Boston questionnaires) . Intervention 2: Control group:Injection (40 mg Methyl prednisolone) proximal to crease; . All injections would be made via insulin needle (gauge 29, and length 2.1 inch). proximal method injection takes place in volar section (upper part of wrist crease) and medial side of Palmaris longus tendon; while, needle entrance angle is 30-40 degrees. One and three months after the injection, patients will be reevaluated in terms of severity of symptoms and functional status (VAS- Boston questionnaires) . Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no more data at present.