Middle back pain on your left side can take many diverse forms.

It can also happen when you become injured from a traumatic event.

This is calledreferred pain.

person holding back while walking on track

Iuliia Burmistrova / Getty Images

Your middle back consists of 12 vertebrae labeled T1 through T12.

Muscles, nerves, tendons, and ligaments surround your thoracic spine to help with movement and flexibility.

When these sites are damaged or diseased, they can cause middle back pain.

Middle back pain on your left side can also be linked to yourkidneys.

Middle back pain can also occur from conditions that affect yourpancreas.

Treatments that range from prescription drugs to surgery may be needed to provide relief.

Health conditions must be addressed if they are the cause of the pain.

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