Arm pain after stenting may be related to causes such as radiating pain, phlebitis and cervical spondylosis. 1. Radioactive pain: When you have a cardiac stent surgery, you need to puncture into the narrowed blood vessel and put the stent into it, which will cause some damage to the local blood vessel. When the wound has not fully recovered, the heart will produce localized pain, which can radiate to the arm. 2. Phlebitis: If phlebitis occurs after cardiac stenting, it can cause ischemic pain in the arms due to poor blood flow in the local blood vessels, which in turn affects the blood flow in the arms. 3. Cervical spondylosis: patients with cardiac stents who suffer from cervical spondylosis, which leads to compression of the nerves innervating the arms, can cause arm pain, which can be mistaken for a relationship with the cardiac stent. If you have arm pain after stenting, it is recommended that you go to the hospital in time to find out the cause and treat it according to the doctor’s instructions, so as to avoid delaying the treatment.