The cause of small arm pain is very complex, if rest can not be relieved, consider the occurrence of small arm soft tissue injury, bone trauma, carpal tunnel syndrome, cervical spondylosis and other diseases caused by the disease, should be timely to the hospital to avoid delays in the condition. Small arm pain may be trauma caused by soft tissue injury, symptoms manifested in the small arm pain and swelling. Cold compresses should be applied within 72 hours of the injury, and hot compresses can be applied within 72 hours. Patients can also use topical medications such as diclofenac diethylamide. Pain in the lower arm may be caused by a fracture or fracture of the lower arm. At this time, patients should promptly go to the hospital for imaging tests to clarify the cause of the disease and avoid secondary damage to the affected area. Fracture patients usually feel severe pain, you can follow the doctor’s instructions to take ibuprofen, tramadol and other painkillers. Pain in the lower arm may be carpal tunnel syndrome. Carpal tunnel syndrome is a traumatic injury to the wrist such as a fracture or dislocation, or a chronic strain that has not fully recovered, resulting in symptoms such as wrist pain, impaired holding of objects, and finger weakness. Doctors usually immobilize the wrist joint with a cast or splint to give the wrist adequate rest. Small arm pain may be caused by cervical spondylosis, which can compress the nerves leading to pain in the upper limbs, while some patients may exhibit small arm pain due to the irritation of the peripheral nerves. Patients can take non-steroidal anti-inflammatory drugs such as ibuprofen and aspirin as prescribed.