Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Pleural space
Medically reviewed by Min Clinic Staff | Updated: January 2026
Pleural space: The tiny area between the two layers of the pleura (the thin covering that protects and cushions the lungs) between the lungs and chest cavity. The pleural space is normally filled with a small amount of fluid.