The main difference between a bulging disc and a herniated disc is the part of the disc that is affected. A bulging disc involves only the annulus fibrosis, but a herniated disc may affect the annulus fibrosis, nucleus pulposus, cartilage, or the apophyseal bone. A herniated disc must have material displaced from its normal location. It only occurs when there is a defect or other abnormality.

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.