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Wilderness: Sinus Squeeze (cont.)

Sinus Squeeze Symptoms

  • Pressure or pain in the forehead or around the teeth, cheeks, or eyes may occur.
  • The nose may bleed.
  • Pressure and pain increase with increased diving depth due to swelling of the lining of the sinus (mucosal lining) and also bleeding into the sinus.
  • When a diver ascends (goes back to the surface) the remaining air in the sinus expands and may force blood or mucus into the nose and mask.
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Dysbarism »

Although dysbarism includes problems associated with high altitude and aerospace endeavors, dysbarism also relates to the increasing pressures of descending under water that are usually experienced in free or assisted dives.

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