Causes & Symptoms of Thoracic Spinal Nerve Damage
Category: Spine | Author: Stefano Sinicropi | Date: September 18, 2026

Each one of your spinal nerves controls different functions and sensations, so the symptoms you experience can vary based on the exact level of damage. Before we touch on the symptoms, let’s explain where each one of these nerves traverses:
- T1 and T2 – These lead into nerves that go into the top of your chest and into the arms and hands.
- T3, T4 and T5 – These lead into the chest wall and help regulate breathing.
- T6, T7 and T8 – These lead into your chest and abdomen.
- T9, T10, T11 and T12 – These lead into your abdomen and your lower back.
Compression or irritation of these nerves is classified as thoracic radiculopathy, and it can lead to a number of symptoms based on the extent and location of the impingement. Common symptoms include localized pain, radiating pain, tingling, numbness, arm or leg weakness and even difficulty walking or breathing.
There are a couple of different causes of nerve irritation or inflammation, so a spine specialist needs to determine the underlying cause so that the correct treatment methods can be pursued. Two of the most common causes of thoracic radiculopathy are from compression caused by a herniated disc or from a narrowing of the spinal foramen, an opening through which these nerves pass. With that said, it’s also important to note that a severe intercostal muscle sprain can also lead to nerve compression or damage.
Dr. Sinicropi and the team at Midwest Spine & Brain Institute are confident that they can find the right diagnosis and treatment path for your spine needs. Whether that’s a physical exam or more advanced imaging, he’ll work to determine exactly what’s going on in your spine and then discuss your treatment options while also taking into account your personal needs and goals. Let us find a treatment program suited to you.
For more information, or for help with a specific spinal concern, connect with our office today at (651) 430-3800.