Dermatomes are divided into groups based on where in the spine they originate: While the body has 31 spinal nerves, you only have 30 dermatomes. That’s because C1 (in your neck) doesn’t ...

According to a 2019 article, shingles usually occurs in one or two dermatomes on the face or chest area and does not spread across the midline of the body. Shingles appears as a cluster of bumps ...