Barotrauma is due to a disequilibrium between the pressure of an organism and the exterior pressure surrounding the body. Barotrauma is especially common in deep-sea and free divers, and even during airplane travel. The sudden pressure of gas causes lesions on the organic tissues. Zones most affected by barotrauma are the ears, the sinuses, the lungs and the eyes. Barotrauma causes pain, nausea, dizziness, wheezing, migraines, and bleeding. Barotrauma of the lungs is potentially fatal.