Small arm pain, common causes are trauma, cervical spondylosis, fasciitis, tumor, etc., can be given according to the cause of the drug treatment, general treatment, surgical treatment and so on. 1. Trauma: extrusion and collision of external forces may cause local ligament and fascia injuries, causing pain in the small arm. If the skin is not broken, you can apply cold compresses within 72 hours, hot compresses after 72 hours, and use Yunnan Baiyao aerosol externally, and if the pain is serious, you can take ibuprofen, celecoxib and other medicines. 2. Cervical spondylosis: cervical spondylosis compression of nerves can also lead to small arm pain, you can take gabapentin capsules, vitamin B12 tablets, aspirin and other drugs to alleviate the symptoms, but also the use of traction therapy, if necessary, to take surgical treatment. 3. Fasciitis: some patients can be relieved by resting and applying hot compresses locally, or taking diclofenac sodium. 4. Tumor: local tumor compressing the nerve and soft tissue may also lead to small arm pain, and the tumor needs to be removed through surgery in time. There may be other reasons for small arm pain, you need to go to the hospital for examination, clarify the cause of the disease, and follow the doctor’s instructions for treatment.