Where does squeeze most commonly occur for divers?

Squeeze is a condition that divers experience when there is an imbalance between the pressure inside a body cavity and the surrounding water pressure. This typically occurs as divers descend and ascend in water. The areas of the body most susceptible to this condition include the sinuses, the face, and the middle ear.

During descent, increased external water pressure can cause these air-filled spaces to compress, leading to discomfort or pain if the pressure is not equalized properly. The middle ear is particularly vulnerable because it has a direct connection to the outside environment through the Eustachian tubes and requires conscious equalization techniques, such as Valsalva maneuver. Similarly, the sinuses must also be equalized as pressure increases, which can be problematic for divers with sinus congestion or other issues.

The face can experience squeeze as well, especially around the nasal passages and other facial structures. Therefore, recognizing that squeeze can occur in all three of these areas reflects a comprehensive understanding of the potential effects of pressure changes on the diver's body, making "All of the above" the most accurate choice. This highlights the importance of equalizing pressure in all these areas during a dive to prevent discomfort and injury.