Left arm pain may be caused by strain, trauma, frozen shoulder, cervical spondylosis and other factors.
1. Strain: mostly seen in manual laborers, long-term overload of work caused by local soft tissue edema, resulting in localized pain in the left arm, generally can be relieved after rest.
2. Trauma: Trauma causes soft tissue injury of the left arm, or fractures or dislocations of the upper limb, resulting in localized pressure and swelling of the left arm.
3. Frozen shoulder: it is mostly seen in the left arm after getting cold, and the pain in the shoulder joint is limited and aggravated after activities.
4. Cervical spondylosis: when the cervical spine compresses the nerves, pain in the left arm may occur, usually accompanied by numbness of the hands, upper limb muscle weakness.
There are many other causes of left arm pain, such as rheumatoid arthritis, bone tumors, etc. It is recommended to consult a doctor in time to clarify the cause of the disease before treatment.