What is a moderate size central HNP?

A moderate-sized central herniated nucleus pulposus (HNP) refers to a condition where the gel-like center of an intervertebral disc protrudes into the spinal canal, potentially compressing nearby nerves. This type of herniation typically occurs in the lumbar or cervical spine and can cause varying degrees of pain, numbness, or weakness in the limbs. The term "moderate size" suggests that the protrusion is significant enough to warrant medical attention but not so large as to require immediate surgical intervention in all cases. Treatment options may include physical therapy, medication, or, in some cases, surgery.